Abstract
The theory of characteristic classes for singular varieties experiences a huge development, in quantity and in quality, since the work of Marie-Hélène Schwartz, Wu Wen-Tsün and Robert MacPherson. An impressive number of researchers are extending the field of applications of characteristic classes and their ingredients, including in applied mathematics and physics.
In 1537, in Messina, Francesco Maurolico observed, for the five Platonic polyhedra, the formula that has been called later Euler formula. The Poincaré-Hopf Theorem says that the Euler-Poincaré characteristic is the obstruction to the construction of continuous non-vanishing vector fields tangent to a compact manifold. That opened the door for the construction of characteristic classes by obstruction theory: for manifolds, by Eduard Stiefel and Hassler Whitney in the real case and by Shiing-shen Chern in the complex case, then, in the singular framework, by Marie-Hélène Schwartz. The functorial definition by Robert MacPherson is the starting point of a huge development of the theory and applications of Chern-Schwartz-MacPherson classes and their ingredients: local Euler obstruction, Wu-Mather classes, Milnor classes, Segre classes, bivariant theory, motivic characteristic classes, etc.
This survey intentionally includes a brief history of the creation of characteristic classes from their very beginning as well as the detailed definition, by obstruction theory, of Schwartz classes giving rise to Chern-Schwartz-MacPherson classes.
In memory of Roberto Callejas-Bedregal
who died from covid19 on April 6, 2021.
We will never forget your joy, your laughter
and your enthusiasm for mathematics.
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Notes
- 1.
There are several ways to write Wu Wen-Tsün name in Latin characters. We use the one he used to sign his articles during his French period, that is the one of main papers cited here.
- 2.
Given a triangulation of X for which x is a vertex, the link of x is the union of simplexes τ which are faces of simplexes σ whose x is a vertex but such that x is not a vertex of τ.
- 3.
The map is labelled by (6) in [156]. Here Cons(X) is the set of constructible functions, that we denote by \(\mathcal {F}(X)\).
References
C. Addabbo Il “Libellus de impletione loci” di Francesco Maurolico e la tassellazione dello spazio, PhD. Dissertation, University of Pisa, 2015.
P. Aluffi, MacPherson’s and Fulton’s Chern classes of hypersurfaces. Internat. Math. Res. Notices (1994), 455–465.
P. Aluffi, Weighted Chern-Mather classes and Milnor classes of hypersurfaces. Singularities - Sapporo 1998. Adv. Stud. Pure Math. 29, 1–20 (2000).
P. Aluffi, Differential forms with logarithmic poles and Chern-Schwartz-MacPherson classes of singular varieties, C. R. Acad. Sci. Paris, Sér. I 329 (7) (1999) 619–624.
P. Aluffi, Singular schemes of hypersurfaces, Duke Math. J. 80 (1995), 325–351.
P. Aluffi, Chern classes for singular hypersurfaces, Trans. Am. Math. Soc., 351 (10) (1999), pp. 3989–4026.
P. Aluffi, Computing characteristic classes of projective schemes J. Symb. Comput., 35 (1) (2003), pp. 3–19.
P. Aluffi, Chern classes of birational varieties, Int. Math. Res. Not. (2004) 3367–3377.
P. Aluffi, Modification systems and integration in their Chow groups. Selecta Mathematica volume 11, 155 (2005).
P. Aluffi„ Characteristic Classes of Singular Varieties. In Topics in cohomological studies of algebraic varieties, Trends Math., pages 1–32. Birkhäuser, Basel, 2005. Edited by Piotr Pragacz.
P. Aluffi, Limits of Chow groups, and a new construction of Chern-Schwartz-MacPherson classes, Pure Appl. Math. Q. 2 (2006), pp. 915–941.
P. Aluffi, Celestial Integration, Stringy Invariants, and Chern-Schwartz-MacPherson Classes. In: Brasselet JP., Ruas M.A.S. (eds) Real and Complex Singularities. Trends in Mathematics. Birkhäuser Basel. 2006, pp. 1–13
P. Aluffi, Segre classes and invariants of singular varieties, In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume III. Springer, Cham, 2022.
P. Aluffi. The Chern-Schwartz-MacPherson class of an embeddable scheme Forum of Mathematics, Sigma (2019), Vol. 7.
P. Aluffi, Classes de Chern pour variétés singulières, revisitées, C. R. Math. Acad. Sci. Paris, 342 (2006), 405–410.
P. Aluffi and J.-P. Brasselet, Une nouvelle preuve de la concordance des classes définies par M.H. Schwartz et par R. MacPherson, Bull. Soc. Math. France 136 (2), 2008, pp. 159–166.
P. Aluffi and M. Esole, Chern class identities from tadpole matching in type IIB and F-theory J. High Energy Phys., 2009 (03) (2009).
P. Aluffi and M. Esole, New orientifold weak coupling limits in F-theory J. High Energy Phys., 2010 (02) (2010).
P. Aluffi and E. Faber, Splayed divisors and their Chern classes, Journal of the London Mathematical Society, vol 88, No 2, 563–579, (2013).
P. Aluffi and M. Marcolli, Intersection theory, characteristic classes and algebro-geometric Feynman rules. preprint, for MathemAmplitudes 2019.
P. Aluffi, L. C. Mihalcea, J. Schürmann and C. Su Motivic Chern classes of Schubert cells, Hecke algebras, and applications to Casselman’s problem, arXiv:1902.10101.
P. Aluffi, L. C. Mihalcea, J. Schürmann and C. Su Positivity of Segre-MacPherson classes, arXiv: 1902.00762.
P. Aluffi, L. C. Mihalcea, J. Schürmann and C. Su Shadows of characteristic cycles, Verma modules, and positivity of Chern-Schwartz-MacPherson classes of Schubert cells, arXiv:1709.08697.
D.A.H. Ament, J.J. Nuño-Ballesteros, B. Oréfice-Okamoto, J.N. Tomazella, The Euler obstruction of a function on a determinantal variety and on a curve, Bull. Brazilian Math. Soc. v. 47, n. 3, pp. 955–970, 2016.
M.F. Atiyah and F. Hirzebruch, Cohomologie-Operationen und characteristische Klassen, Math. Z. 77 (1961), pp. 149–187.
A. Baillet, La vie de Monsieur Des-Cartes, 2 vols., Paris, chez Daniel Horthemels, 1691 (rist. anast.: Hildesheim, Olms, 1972; New York, Garland, 1987).
G.F. Barbosa, N.G. Grulha, M.J. Saia, Minimal Whitney stratification and Euler obstruction of discriminants, Geometriae Dedicata 186 (1), 173–180, 2017.
G. Barthel, J.-P. Brasselet, K.-H. Fieseler, Classes de Chern des variétés toriques singulières, C. R. Acad. Sci. Paris Sér. I Math., 315 (1992), 187–192.
G. Barthel, J.-P. Brasselet, K.-H. Fieseler, O.Gabber et L. Kaup, Relèvement des cycles algébriques et homomorphismes associés en homologie d’intersection, [Lifting of algebraic cycles and associated homomorphisms in intersection homology] Ann. of Math. (2) 141 (1995), no. 1, 147–179.
G. Barthel, J.-P. Brasselet, K.-H. Fieseler and L. Kaup, Invariante Divisoren und Schnitthomologie von torischen Varietäten. Banach Center Publications, “Parameter Spaces”, Vol. 36, Warszawa 1996, ed. P. Pragacz, pp. 9–23 (in German).
G. Barthel, J.-P. Brasselet, K.-H. Fieseler and L. Kaup, Equivariant Intersection Cohomology of Toric Varieties, Algebraic Geometry, Hirzebruch 70, 45–68, Contemp. Math.241, Amer. Math. Soc., Providence, R.I., 1999.
V. Batyrev. Birational Calabi-Yau n-folds have equal Betti numbers. In New trends in algebraic geometry (Warwick, 1996), London Math. Soc. Lecture Note Ser., volume 264, pages 1–11. Cambridge Univ. Press, Cambridge, 1999.
V. Batyrev and K. Schaller Stringy Chern classes of singular toric varieties and their applications Commun. Num. Theor. Phys. 11 (2017) 1–40.
P. Baum, W. Fulton and R. MacPherson, Riemann-Roch for singular varieties, Publ. Math. IHES 45 (1975), 101–145.
K. Behrend, Donaldson-Thomas type invariants via microlocal geometry, Ann. of Math. (2) 170 (2009), no. 3, 1307–1338.
D.M. Belov and G.W. Moore, Holographic action for the Self-Dual Field, https://arxiv.org/abs/hep-th/0605038
J. Fernández de Bobadilla and I. Pallarés, The Brasselet-Schürmann-Yokura conjecture on L-classes of singular varieties, arXiv:2007.11537.
J. Fernández de Bobadilla, I. Pallarés and M. Saito, Hodge modules and cobordism classes, arXiv:2103.04836.
L. Borisov and A. Libgober. Elliptic genera of singular varieties. Duke Math. J. 116 (2003), 319–351.
J.-P. Brasselet, Définition combinatoire des homomorphismes de Poincaré, Alexander et Thom pour une pseudo-variété, Astérisque, 82–83, (1981), p. 71–91.
J.P. Brasselet Existence des classes de Chern en théorie bivariante, Astérisque 101–102, (1983).
J.P. Brasselet Local Euler obstruction, old and new. In XI Brazilian Topology Meeting (Rio Claro, 1998), pages 140–147. World Sci. Publ., River Edge, NJ (2000).
J.P. Brasselet On the Contribution of Wu Wen-Tsün to Algebraic Topology Journal of Systems Science and Complexity, volume 32, pages 3–36 (2019)
J.P. Brasselet Marie-Hélène Schwartz et les champs radiaux, un parcours mathématique. Comptes Rendus Acad. Sci. Paris. Mathématique, Tome 359 (2021) no. 3, pp. 329–354.
J.P. Brasselet An introduction to Characteristic Classes, Editora do IMPA, Estrada Dona Castorina, 110 Jardim Botânico, 22460–320 Rio de Janeiro, Brazil, (2021).
J.P. Brasselet Intersection homology, Chapter 5 In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume II. Springer, Cham, 2021.
J.P. Brasselet Characteristic Classes of Singular Varieties. Book in preparation.
J.-P. Brasselet, K.-H. Fieseler et L. Kaup, Classes caractéristiques pour les cônes projectifs et homologie d’intersection Commentarii Mathematici Helvetici 65 (1), 581–602.
J.-P. Brasselet et G. Gonzalez-Sprinberg, Espaces de Thom et contre-exemples de J.L. Verdier et M. Goresky, Bol. Soc. Bras. Mat. vol.17 n∘2 (1986).
J.-P. Brasselet et G.Gonzalez-Sprinberg, Sur l’homologie d’intersection et les classes de Chern des variétés singulières, Travaux en cours n∘23 Hermann (1987), 5–11.
J.-P. Brasselet, N.G. Grulha Jr. Local Euler obstruction, old and new, II. In Real and complex singularities, volume 380, London Math. Soc. Lecture Note Ser., pages 23–45. Cambridge Univ. Press, Cambridge (2010).
J.-P. Brasselet, N.G. Grulha Jr. and M.A.S. Ruas The Euler obstruction and the Chern obstruction Bulletin of the London Mathematical Society 42 (6), 1035–1043.
J.-P. Brasselet, D.T. Lê, and J. Seade, Euler obstruction and indices of vector fields. Topology, 39(6) p. 1193–1208 (2000).
J.-P. Brasselet, A.K.M. Libardi, E.C. Rizziolli and M.J. Saia, The Wu classes in cobordism theory. Preprint 2017.
J.-P. Brasselet, A.K.M. Libardi, E.C. Rizziolli and M.J. Saia, Cobordism of Maps of Locally Orientable Witt Spaces, Pub. Math. Debrecen, 94, 3–4 (2019), 299–317.
J.-P. Brasselet, D. Massey, A. Parameswaran and J. Seade, Euler obstruction and defects of functions on singular varieties. J. London Math. Soc. (2), 70(1) p. 59–76 (2004).
J.-P. Brasselet, Thủy Nguyê~n T.B., An elementary proof of the Euler formula using the Cauchy’s method, Topology ans its applications, Vol. 293, 2021.
J.-P. Brasselet, Thủy Nguyê~n T.B, O Teorema de Poincaré-Hopf, C.Q.D.- Revista Electrônica Paulista de Matemàtica 16 (2019), pp. 134–162 (in Português).
J.P. Brasselet, M.H. Schwartz: Sur les classes de Chern d’un ensemble analytique complexe, Astérisque 82–83 (1981), 93–147.
J.-P. Brasselet, J. Schürmann, S. Yokura, Classes de Hirzebruch et classes de Chern motiviques. C. R. Acad. Sci. Paris Ser. I, 342 (2006), pp. 325–328.
J.-P. Brasselet, J. Schürmann, S. Yokura, On Grothendieck transformations in Fulton-MacPherson’s bivariant theory. Journal of Pure and Applied Algebra, Volume 211, Issue 3, Pages 665–684 (2007).
J.-P. Brasselet, J. Schürmann, S. Yokura, On the uniqueness of bivariant Chern class and bivariant Riemann-Roch transformations. Advances in Math. 210, 797–812, 2007.
J.-P. Brasselet, J. Schürmann, S. Yokura, Hirzebruch classes and motivic Chern classes for singular spaces, Journal of Topology and Analysis, 2 (2010), n.1, 1–55.
J.-P. Brasselet, J. Schürmann, S. Yokura, Motivic and derived motivic Hirzebruch classes, Homology, Homotopy and Applications, vol. 18(2), 2016, pp. 283–301.
J.-P. Brasselet, J. Schürmann, S. Yokura, Hirzebruch classes and motivic Chern classes for singular (complex) algebraic varieties, arXiv:0405412 (2004).
J.-P. Brasselet, J. Seade and T. Suwa,A proof of the proportionality theorem, arXiv:math/0511601v1 (2005).
J.-P. Brasselet, J. Seade, T. Suwa, Vector fields on Singular Varieties, Lecture Notes in Mathematics, Vol. 1987, 2009. Springer-Verlag Berlin Heidelberg.
A. Brigagliaa and C. Ciliberto, Remarks on the relations between the Italian and American schools of algebraic geometry in the first decades of the 20th century, Historia Mathematica, 31 (2004), 310, 319.
J. W. Bruce and R. M. Roberts Critical points of functions on analytic varieties, Topology Vol. 27, No 1. pp 57–90, 1988.
J. L. Brylinski, A. Dubson, M. Kashiwara, Formule de l’indice pour les modules holonomes et obstruction d’Euler locale, C.R. Acad. Sci. 293, Série A, 573–576 (1981).
R Callejas-Bedregal, M Saia, J Tomazella Euler obstruction and polar multiplicities of images of finite morphisms on ICIS, Proceedings of the American Mathematical Society 140 (3), 855–863.
R Callejas-Bedregal, M.F.Z. Morgado, and J. Seade Lê cycles and Milnor classes Invent. Math., 197(2):453–482, 2014.
R Callejas-Bedregal, M.F.Z. Morgado, and J. Seade Lê cycles and Milnor classes - Erratum Invent. Math., 197(2):483–489, 2014.
R Callejas-Bedregal, M.F.Z. Morgado, and J.Seade Milnor number and Chern classes for singular varieties: an introduction In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume III. Springer, Cham, 2022.
S.E. Cappell, A. Libgober, L. Maxim, J.L. Shaneson Hodge genera and characteristic classes of complex algebraic varieties. Electronic Research Announcements, 2008, 15: 1–7.
S.E. Cappell, L. Maxim, J. Schürmann, J.L.Shaneson Equivariant characteristic classes of complex algebraic varieties, Comm. Pure Appl. Math., 65 (2012), 1722–1769.
S.E. Cappell, L. Maxim, J. Schürmann, J.L. Shaneson and S. Yokura, Characteristic classes of Symmetric products of complex quasi-projective varieties. Journal für die reine und angewandte Mathematik (Crelles Journal), Volume 2017, Issue 728, Pages 35–63.
S.E. Cappell and J.L.Shaneson, Characteristic classes, singular embeddings, and intersection homology Proc. Nat. Acad. Sci. U S A. 1987, 84(12)
S.E. Cappell and J.L. Shaneson, Singular spaces, characteristic classes, and intersection homology, Annals of Mathematics 134(1991), 325–374.
S.E. Cappell and J.L. Shaneson, Stratifiable maps and topological invariants. J. Amer. Math. Soc. 4, 521–551 (1991)
S.E. Cappell and J.L.Shaneson, Genera of algebraic varieties and counting lattice points. Bull. Amer. Math. Soc. 30, 62–69 (1994)
H. Cartan, Séminaire Henri Cartan tome 2 (1949–1950) exp. 14 and exp. 15. Carrés de Steenrod, exposés de H. Cartan on 13th and 20th March 1950.
A.L. Cauchy, Recherches sur les polyèdres, Premier Mémoire lu à la première classe de l’Institut, en Février 1811, par A.L. Cauchy, Ingénieur des Ponts et Chaussées. Journal de l’Ecole Polytechnique, Volume 9, (1913) 68–86.
A.L. Cauchy, Sur les polygones et les polyèdres, Second Mémoire lu à la première classe de l’Institut, le 20 Janvier 1812, par A.L. Cauchy, Ingénieur des Ponts et Chaussées. Journal de l’Ecole Polytechnique, Volume 9, (1913) 87–98.
E. Celledoni and B. Owren, On the implementation of Lie group methods on the Stiefel manifold, Numerical Algorithms, vol. 32, pp. 163–183, 2003.
N.C. Chachapoyas Siesquén, Euler obstruction of essentially isolated determinantal singularities, Topology and its Applications, Volume 234, 2018, Pages 166–177.
J. Cheeger, A combinatorial formula for Stiefel-Whitney homology classes, J.C. Cantrell and C.H. Edwards (eds) Markham Publ. Co., (1970). 470–471.
S.S. Chern, Characteristic classes of Hermitian manifolds, Ann. Math. 47 (1946), 85–121.
S.S. Chern, On the Characteristic Classes of Riemannian Manifolds, Proc. Nat. Acad. Sciences April 1, 1947 33 (4) 78–82.
S.-S. Chern and J. Simons, Characteristic forms and geometric invariants, Annals of Mathematics, vol. 99, no 1, 1974, pp. 48–69.
M. Corrêa and M. Soares, Inequalities for characteristic numbers of flags of distributions and foliations, Int. J. Math. 25, (2014).
P. Costabel, Descartes, Exercices pour les éléments des solides, De solidorum elementis, Epiméthée, Paris, puf, 1987.
T.M. Dalbelo, Surfaces multi-toriques, obstruction d’ Euler et applications Thèse, Université d’Aix-Marseille (France) and Universidade de São Paulo (Brasil), 24/10/2014.
T. M. Dalbelo and N. G. Grulha Jr. The Euler obstruction and torus action, Geometriae Dedicata volume 175, pp 373–383 (2015).
T.M. Dalbelo, N.G. Grulha Jr., M.S. Pereira, Toric surfaces, vanishing Euler characteristic and Euler obstruction of a function Annales de la Faculté des sciences de Toulouse: Mathématiques, Série 6, Tome 24 (2015) no. 1, pp. 1–20.
T.M. Dalbelo, L. Hartmann, Brasselet number and Newton polygons, Manuscripta mathematica, volume 162, pages 241–269 (2020).
T.M. Dalbelo, M.S. Pereira, Multitoric surfaces and Euler obstruction of a function International Journal of Mathematics. Vol. 27, No. 10, 1650084 (2016).
J. Damon and D. Mond. \(\mathcal A\) -codimension and the vanishing topology of discriminants. Invent. Math., 106(2): 217–242, 1991.
T. de Fernex, E. Lupercio, T. Nevins, and B. Uribe. Stringy Chern classes of singular varieties, Advances in Mathematics Volume 208, Issue 2, 30 January 2007, Pages 597–621.
T. de Jong and D. van Straten. Disentanglements., In Singularity theory and its applications, Part I (Coventry, 1988/1989), volume 1462 of Lecture Notes in Math., pages 199–211. Springer, Berlin, 1991.
J. Denef and F. Loeser. Geometry on arc spaces of algebraic varieties. In: European Congress of Mathematics, Vol. I (Barcelona, 2000), Progr. Math. 201, Birkhäuser, Basel, 2001, 327–348.
J. Dieudonné, A History of Algebraic and Differential Topology, Birkhäuser (1988).
A. Dubson, Classes caractéristiques des variétés singulières, C. R. Acad. Sci. Paris Sér. A 287 (1978), 237–240
A. Dubson, Formule pour l’indice des complexes constructibles et D-modules holonomes, C.R. Acad. Sci. 298, Série A, 6, 113–164 (1984).
N. Dutertre, Euler obstruction and Lipschitz-Killing curvatures, Israel J. Math. 213, (2016), 109–137.
N. Dutertre and N.G. Grulha Jr. Lê-Greuel type formula for the Euler obstruction and applications. Adv. Math., 251, pp. 127–146 (2014).
N. Dutertre and N.G. Grulha Jr. Some notes on the Euler obstruction of a function. Journal of Singularities 10, 82–91 (4) 2014.
N. Dutertre and N.G. Grulha Jr. Global Euler obstruction, global Brasselet numbers and critical points, Proceedings of the Royal Society of Edinburgh Section A: Mathematics, Volume 150, Issue 5, October 2020, pp. 2503–2534.
W. Ebeling and S.M. Gusein-Zade, Radial index and Euler obstruction of a 1-form on a singular variety Geom. Dedicata 113 (2005), 231–241.
W. Ebeling and S. M. Gusein-Zade,Indices of vector fields and 1-forms on singular varieties, Global aspects of complex geometry, 129–169, Springer, Berlin, 2006.
W.Ebeling and S.M. Gusein-Zade, Chern obstructions for collections of 1-forms on singular varieties, World Scientific, Singularity Theory, pp. 557–564 (2007).
W. Ebeling and S.M. Gusein-Zade, On the indices of 1-forms on determinantal singularities. Tr. Mat. Inst. Steklova, 267 (Osobennosti i Prilozheniya), p. 119–131 (2009). Proceedings of the Steklov Institute of Mathematics, 267 (2009), 113–124.
W. Ebeling and S.M. Gusein-Zade, Indices of vector fields ab-nd 1-forms, To appear In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume IV. Springer, Cham.
F. Ehlers Eine Klasse komplexer Mannigfaltigkeiten und die Auflösung einiger isolierter Singularitäten. Math. Annalen, 218 (1975) 127–156.
C. Ehresmann, Sur la topologie de certain espaces homogènes, Ann. of Math. Vol. 35 (1934) 396–443.
D. Eisenbud and Harris, 3264 & All That. A second course in Algebraic Geometry, Cambridge University Press, March 2016.
M. El Haouari, Sur les classes de Stiefel-Whitney en théorie bivariante, Bull. Soc. Math. Belgique, Ser. B, 39 (1987), 151–176.
L. Ernström, S. Yokura, Bivariant Chern-Schwartz-MacPherson classes with values in Chow groups, Selecta Math. (N.S.), 8 (2002), pp. 1–25.
L. Ernström, S. Yokura, Addendum to bivariant Chern-Schwartz-MacPherson classes with values in Chow groups, Selecta Math. (N.S.), 8 (2004), pp. 29–35.
L. M. Fehér, R. Rimányi, Chern-Schwartz-MacPherson classes of degeneracy loci. Geom. Topol. 22 (2018), no. 6, 3575–3622.
L. Fehér, R. Rimányi, and A. Weber, Characteristic Classes of Orbit Stratifications, the Axiomatic Approach. In Schubert Calculus and Its Applications in Combinatorics and Representation Theory, ed. Jianxun Hu, Changzheng Li, Leonardo C. Mihalcea. Springer Proceedings in Mathematics and Statistics 2020.
L. Fehér, R. Rimányi, and A. Weber, Motivic Chern classes and K-theoretic stable envelopes Proc. London Math. Soc. (3) 122 (2021) 153–189.
B.L. Feigin, Characteristic classes of flags of foliations, Functional Anal. Appl., 9 (1975), 312–317.
C. Francese and D. Richeson The Flaw in Euler’s Proof of His Polyhedral Formula. The American Mathematical Monthly. Volume 114, 2007 - Issue 4. Pages 286–296, Published online: 31 Jan 2018.
G. Friedman Intersection homology with field coefficients: K-Witt spaces and K-Witt bordism, Communications on Pure and Applied Mathematics 62, (2009), no 9, 1265–1292.
J.H.G. Fu, Monge-Ampere functions I, Indiana U. Math. J. 38 (1989), 745–771.
J.H.G. Fu, Curvature measures of subanalytic sets, Amer. J. Math. Vol. 116, No. 4 (1994), pp. 819–880.
J.H.G. Fu, Curvature measures and Chern classes of singular varieties. J. Differential Geom. 39(2): 251–280 (1994).
J.H.G. Fu, C. McCrory, Stiefel-Whitney classes and the conormal cycle of a singular variety. Trans. Amer. Math. Soc. 349, 809–835 (1997).
W. Fulton. Intersection theory. Springer-Verlag, Berlin, 1984.
W. Fulton and R. MacPherson, Categorical framework for the study of singular spaces., Memoirs of the Amer. Math. Soc. vol. 243, A.M.S., Providence, RI 1981.
T. Gaffney, The Multiplicity Polar Theorem and Isolated Singularities October 2005, Journal of Algebraic Geometry 18(3) 2005.
T. Gaffney, N.G. Grulha, The Multiplicity Polar Theorem, collections of 1-forms and Chern numbers, Journal of Singularities, volume 7 (2013), 39–60.
T. Gaffney, N.G. Grulha, M. Ruas, The local Euler obstruction and topology of the stabilization of associated determinantal varieties, Mathematische Zeitschrift, 2019, v. 291, pp. 905–930.
P. B. Gamkrelidze, Computation of the Chern cycles of algebraic manifolds, Doklady Akad. Nauk SSSR, (N.S.), 90, no. 5, 1953, 719–722 (in Russian).
P. B. Gamkrelidze, Chern’s Cycles of Algebraic Manifolds, Izv. Acad. Scis., CCCP, Math. Series, 20 (1956) 685–706 (in Russian).
I.M. Gelfand and R.D. MacPherson A combinatorial formula for the Pontrjagin classes, Bulletin of the Amer. Math. Soc. Volume 26, Number 2,1992, 304–309.
V. Ginsburg, Characteristic varieties and vanishing cycles. Invent. Math. 84 (1986), no. 2, 327–402.
R. Goldstein, E. Turner, A formula for Stiefel-Whitney homology classes, Proc. Amer. Math. Soc. 58 (1976), 339–342.
R. Goldstein, E. Turner, Stiefel-Whitney homology classes of quasi-regular cell complexes, Proc. Amer. Math. Soc. 64 (1977), 157–162.
X. Gómez-Mont, J. Seade and A. Verjovsky, The index of a holomorphic flow with an isolated singularity, Math. Ann. 291 (1991), 737–751.
G. Gonzalez-Sprinberg, Calcul de l’invariant local d’Euler pour les singularités quotient de surfaces. C. R. Acad. Sci. Paris Sér. A-B, 288 (21) pp. A989–A992 (1979).
G. Gonzalez-Sprinberg. L’obstruction d’Euler locale et le théorème de MacPherson, Astérisque 82–83 1981, 7–32.
G. Gonzalez-Sprinberg. Cycle maximal et invariant d’Euler local des singularités isolées de surfaces, Topology 21, (4) (1982), 401–408.
G. Gonzalez-Sprinberg, On Nash blow-up of orbifolds Singularities - Niigata-Toyama 2007, Advanced Studies in Pure Mathematics 56, 2009, pp. 133–149.
M. Goresky, Morse theory, stratifications and sheaves, Chap. 5, In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume I. Springer, Cham.
M. Goresky and R. MacPherson, Intersection homology theory, Topology 19 (1980), no. 2, 135–162.
M. Goresky and R. MacPherson, Intersection homology II, Invent. Math. 72 (1983), no. 1, 77–129.
M. Goresky and R. MacPherson, Stratified Morse theory. Springer (1988) volume 14 of Ergebnisse der Mathematik und ihrer Grenzgebiete.
M. Goresky and W. Pardon, Wu Numbers of Singular Spaces, Topology 28, (1989), 325–367.
M. Goresky and P. Siegel. Linking pairings on Singular spaces, Comment. Math. Helvet. 58, (1983), 96–110.
V. Goryunov, Functions on space curves, J. London Math. Soc. 61 (200), 807–822.
D.R. Grayson and M.E. Stillman, Macaulay2, a software system for research in algebraic geometry, Available at http://www.math.uiuc.edu/Macaulay2/
P. Griffiths and J. Harris, Principles of Algebraic Geometry, Wiley Classics Library (2nd ed. (1994)). Wiley Interscience. p. 494.
A Grothendieck, La théorie des classes de Chern, Bulletin de la S. M. F., tome 86 (1958), pp. 137–154.
A Grothendieck, Récoltes et Semailles. Réflexions et témoignage d’un passé de mathématicien, 1986. Edition Gallimard, Paris, 2022.
N.G. Grulha Jr., L’obstruction d’Euler locale d’une application, Annales de la Faculté des Sciences de Toulouse: Mathématiques, (17), (1), pp. 53–71, (2008).
N.G. Grulha Jr. The Euler Obstruction and Bruce–Roberts’ Milnor Number The Quarterly Journal of Mathematics 60 (2009), no. 3, 291–302.
N.G. Grulha Jr. Stability of the Euler obstruction of a function, Bol. Soc. Mat. Mexicana (3) 17, 2, 2011.
N.G. Grulha Jr., M.E. Hernandes, R. MartinsPolar multiplicities and Euler obstruction for ruled surfaces, Bulletin of the Brazilian Mathematical Society 43 (3), 443–451, 2012.
N.G. Grulha Jr., M.S. Pereira, H. Santana Poincaré-Hopf Theorem for Isolated Determinantal Singularities arXiv:2007.05026v3.
S. Halperin and D. Toledo, Stiefel Whitney Homology Classes, Annals of Math 96 (1972), 511–525.
M. Helmer, ToricInvariants: A Macaulay2 package. Version 3.01, A Macaulay2 package available at https://faculty.math.illinois.edu/Macaulay2/doc/Macaulay2-1.16/share/ doc/Macaulay2/ToricInvariants/html/index.html
M. Helmer Algorithms to compute the topological Euler characteristic, Chern-Schwartz-MacPherson class and Segre class of projective varieties, Journal of Symbolic Computation Volume 73, March-April 2016, Pages 120–138.
H. Hironaka, Triangulations of algebraic sets, Proceedings of Symposia in Pure Mathematics, Volume 29, Arcata, California, 1975, pp. 165–185.
F. Hirzebruch, Topological Methods in Algebraic Geometry, Springer-Verlag, 1966.
H. Hopf, Vektorfelden in n-dimensionalen Mannigfaltikeiten, Math. Annalen 96 (1927), 225–250.
M. J. Hopkins and I. M. Singer, Quadratic Functions in Geometry, Topology and M-Theory, J. Differential Geom. Volume 70, Number 3 (2005), 329–452.
K. Houston and N. P. Kirk, On the classification and geometry of corank 1 map- germs from three-space to four-space, Singularity Theory (ed. J. Bruce and D. Mond), London Math. Soc. Lecture Notes Series 263 (1999), 325–351.
D. Husemoller, Fibre bundles, Graduate texts in Mathematics no 20, Springer-Verlag, 1966.
T. Izawa, T. Suwa, Multiplicity of functions on singular varieties, Internat. J. Math. 14, 5 (2003), 541–558.
S. Izumiya and W. L. Marar, The Euler characteristic of a generic wavefront in a 3-manifold, Proc. A.M.S. 118 (1993), 1347–1350.
Y. Jiang, The Pro-Chern-Schwartz-MacPherson class for DM stacks, Pure and Applied Mathematics Quarterly 11 (2015) No.1, 87–114.
Y. Jiang, Note on MacPherson’s local Euler obstruction, Michigan Mathematical Journal, 68(2): 227–250 (2019).
B. F. Jones. Singular Chern classes of Schubert varieties via small resolution. Int. Math. Res. Not. IMRN, (8):1371–1416, 2010.
M. Kashiwara, Index theorem for maximally overdetermined systems of linear differential equations Proc. Japan Acad. 49 (1973), 803–803.
M. Kato, Singularities and some global topological properties, Proc. R.I.M.S. Singularities Symposium, Kyoto Univ. April 1978.
M. É. Kazarian, Multisingularities, cobordisms and enumerative geometry, Russian Math. Survey 58:4 (2003), 665–724 (Uspekhi Mat. nauk 58, 29–88).
M. É. Kazarian, Thom polynomials, Proc. sympo. “Singularity Theory and its application” (Sapporo, 2003), Adv. Stud. Pure Math. vol. 43 (2006), 85–136.
G. Kennedy, MacPherson’s Chern classes of singular algebraic varieties, Comm. Algebra 18 (1990), pp. 2821–2839.
H.C. King and D. Trotman Poincaré-Hopf theorems on singular spaces, Proceedings of the London Math. Soc. Volume 108, Issue 3 (2014), 682–703.
S. Kleiman, On the transversality of a general translate, Compositio Math. 28 (1974), 287–297.
S. L. Kleiman, Multiple point formulas I: Iteration, Acta Math., 147 (1981), 13–49.
S. L. Kleiman, Multiple point formulas II: The Hilbert scheme, Lecture Note in Math. Springer 1436 (1990), 101–138.
K. Knapp, Wu class - definition Bulletin of the Manifold Atlas - 2014. www.map.mpim-bonn.mpg.de/Wu__class.
J. Koncki. Motivic Chern classes of configuration spaces, 2019. Fundamenta Mathematicae 254 (2021), 155–180, Published online: 2 March 2021
J. Koncki and A. Weber, Twisted motivic Chern class and stable envelopes, arXiv:2101.12515.
S. Kumar, R. Rimányi, A. Weber. Elliptic classes of Schubert varieties. Math. Ann. 378 (2020), no. 1–2, 703–728.
M. Kwieciński, Sur le transformé de Nash et la construction du graphe de MacPherson avec applications aux classes caractéristiques, Thèse, Université de la Méditerranée, Marseille, 1994.
M. Kwieciński, Formule du produit pour les classes caractéristiques de Chern-Schwartz-MacPherson et homologie d’intersection, C. R. Acad. Sci. Paris, Sér. I 314 (8) (1992) 625–628.
M. Kwieciński and S. Yokura Product formula for twisted MacPherson classes, Proceedings of the Japan Academy Series A Mathematical Sciences 68 (7), 1992.
I. Lakatos, Proofs and Refutations, Cambridge: Cambridge University Press, 1976.
Lê D.T. Limites d’espaces tangents et obstruction d’Euler des surfaces. Caractéristique d’Euler-Poincaré - Séminaire E.N.S. 1978–1979, Astérisque, no. 82–83 (1981).
Lê D.T. Le concept de singularité isolée de fonction analytique, Adv. Stud. Pure Math. 8 (1986), 215–227, North Holland, Amsterdam, 1987.
D. T. Lê, Singularités isolées des intersections complètes, in “Introduction à la théorie des singularités”, Travaux en cours 36, Hermann (1988).
Lê D. T., Complex analytic functions with isolated singularities, J. Algebraic Geometry 1 (1992), 83–100.
Lê D.T. et B. Teissier: Variétés polaires et classes de Chern des variétés singulières. Ann. of Math. 114, (1981), 457–491.
A. M. Legendre, Élements de géométrie, Firmin Didot, Paris, 1794.
E. Lima O Teorema de Euler sobre Poliedros. Revista Matemática Universitária, No 2, Dezembro 1985, pp. 57–74.
X.F. Liu, Chern classes of singular algebraic varieties, (in Chinese) Science in China (Ser. A), 26(8): 701–705, August 1996.
S. Łojasiewicz Triangulation of semi-analytic sets Annali delle Scuela Normale Superiore di Pisa, Classe di Scienze 3e série, tome 18, no 4 (1964), p. 449–474.
S. Łojasiewicz Sur la géométrie semi et sous-analytique Ann. Inst. Fourier, Grenoble 43, 5 (1993), 1575–1595.
R. MacPherson, Characteristic classes for singular varieties, Proc. 9th Brazilian Math. Coll. Poços de Caldas, (1973), Vol. II, 321–327.
R. MacPherson, Chern classes for singular algebraic varieties, Ann. of Math. 100, no 2 (1974), 423–432.
G. Marjanovic, M. Piggott and V. Solo, Numerical Methods for Stochastic Differential Equations in the Stiefel Manifold Made Simple, IEEE CDC, 2016, https://www.researchgate.net/profile/Goran_Marjanovic4.
G. Marjanovic and V. Solo, An engineer’s guide to particle filtering on the Stiefel manifold IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 3834–3838, 2017.
D.B. Massey, Lê Cycles and Hypersurface Singularities, Springer-Verlag, Lecture Notes in Mathematics 1615, 1995.
D.B. Massey, Hypercohomology of Milnor fibers, Topology 35 (1996), no. 4, 969–1003.
D. Massey, Characteristic cycles and the relative local Euler obstruction. arXiv:1704.04633v2, 2017.
D. Massey, Lê Cycles and Numbers of hypersurface Singularities. In J. Cisneros Molina, D. T. Lê, and J. Seade, editors, Handbook of Geometry and Topology of Singularities, Volume II, pages 353–396. Springer, 2021.
J. N. Mather Stability of C∞ mappings, VI: The nice dimensions, Proc. of Liverpool Singularities-Symposium, I (1969/70), 207–253. LNM, Vol. 192, Springer, 1971.
A. Matsui, Stiefel-Whitney homology classes of Z2 -Poincaré-Euler spaces, Tohoku Math. J. (2) 35 (1983), 321–339.
A. Matsui, Axioms for Stiefel-Whitney homology classes of Z2 -Euler spaces, Tohoku Math. J. (2) 37 (1985), 27–32.
A. Matsui, Stiefel-Whitney homology classes and odd maps, Topology and Computer Science (Atami, 1986) Kinokuniya, Tokyo, 1987, 335–346.
A. Matsui, Stiefel-Whitney homology classes and Euler subspaces, Kodai Math. J. 18 (1995), 481–486.
A. Matsui, H. Sato, Stiefel-Whitney homology classes and homotopy type of Euler spaces, J. Math. Soc. Japan 37 (1985), 437–453.
A. Matsui, H. Sato, Stiefel-Whitney homology classes and Riemann-Roch formula, Homotopy theory and related topics (Kyoto, 1984), Adv. Stud. Pure Math. 9, North-Holland, Amsterdam (1987), 129–134.
Y. Matsui, K. Takeuchi, A geometric degree formula for A-discriminants and Euler obstructions of toric varieties Advances in Mathematics, 226, Issue 2, (2011), 2040–2064.
L. Maxim, J. Schürmann, Characteristic Classes of singular Toric Varieties, Comm. Pure Appl. Math., 68 (12) 2177–2236, 2015.
M. Merle, Variétés polaires, stratifications de Whitney et classes de Chern des espaces analytiques complexes, Bourbaki Seminar, vol. 1982/83, 65–78, Astérisque 105–106, Soc. Math. France, Paris, 1983.
C. McTague Stiefel-Whitney numbers for singular varieties, Mathematical Proceedings of the Cambridge Philosophical Society, Volume 150, Issue 2, March 2011, pp. 273–289.
L. C. Mihalcea and R. Singh. Mather classes and conormal spaces of Schubert varieties in cominuscule spaces. arXiv:2006.04842, June 2020.
J. Milnor, Topology from the Differentiable Viewpoint , Univ. Press of Virginia, Charlottesville, 1965.
J. Milnor and J. Stasheff, Characteristic Classes, Princeton University Press (1974).
D. Mond, Vanishing cycles for analytic maps. In Singularity theory and its applications, Part I (Coventry, 1988/1989), volume 1462 of Lecture Notes in Math., pages 221–234. Springer, Berlin, 1991.
D. Mond, Looking at bent wires– \({\mathcal A}_\varepsilon \) -codimension and the vanishing topology of parametrized curve singularities. Math. Proc. Cambridge Philos. Soc., 117 (2): 213–222, 1995.
D. Mond and J. J. Nuño-Ballesteros Singularities of mappings Grundlehren der mathematischen Wissenschaften. Volume 357, Springer, Cham, 2020.
D. Mond and J. J. Nuño-Ballesteros Singularities of mappings, To appear In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume IV. Springer, Cham.
D. Mond and D. van Straten, Milnor number equals Tjurina number for functions on space curves, J. London Math. Soc. 63 (2001), 177–187.
S. Monnier, Topological field theories on manifolds with Wu structures, Rev. Math. Phys. 29 (2017) no. 05, 1750015.
J.R. Munkres, Elements of Algebraic Topology, Addison-Wesley Publishing Company, 1984.
B.I.U. Nødland, Local Euler obstructions of toric varieties Journal of Pure and Applied Algebra, 222 (3): 508–533, 2018.
J.J. Nuño-Ballesteros, B. Oréfice-Okamoto and J.N. Tomazella The vanishing Euler characteristic of an isolated determinantal singularity. Israel J. Math., 197(1) pp. 475–495 (2013).
J.J. Nuño-Ballesteros, B. Oréfice-Okamoto and J.N. Tomazella The Bruce-Roberts number of a function on a weighted homogeneous hypersurface. The Quarterly Journal of Mathematics Volume 64, Issue 1, March 2013, Pages 269–280.
T. Ohmoto, Equivariant Chern classes of singular algebraic varieties with group actions, Math. proc; Cambridge Phil. Soc; 140 (2006) 115–134.
T. Ohmoto, Chern classes and Thom polynomials, Singularities in Geometry and Topology (ICTP, Trieste, Italy, 2005), World Scientific (2007), 464–482.
T. Ohmoto, Thom polynomials and around, RIMS Kôkyûroku Bessatsu B11 (2009), 75–86.
T. Ohmoto, A note on Chern-Schwartz-MacPherson class, Singularities in Geometry and Topology - Strasbourg 2009, IRMA Lectures in Mathematics and Theoretical Physics, European Math. Soc., Vol. 20 (2012), 117–132.
T. Ohmoto, Singularities of maps and characteristic classes. Adv. Stud. Pure Math, 2016. School on Real and Complex Singularities in São Carlos, 2012 pp. 191–265.
I. Pallarés Torres, Some contributions to the theory of singularities and their characteristic classes. PhD thesis, Basque Center for Applied Mathematics, Bilbao, Spain. June 2nd 2021.
I. Pallarés Torres and G. Peñafort Sanchis, Image Milnor Number Formulas for Weighted-Homogeneous Map-Germs. Results Math 76, 152 (2021).
W. Pardon. Intersection homology Poincaré spaces and the characteristic variety theorem, Comment. Math. Helvet. 65, (1990), 198–233.
A. Parusiński, Characteristic Classes of Singular Varieties, Proceedings of 12th MSJ-IRI symposium “Singularity theory and its applications”. Advanced Studies in Pure Mathematics 43, 2006, 347–368.
A. Parusiński, P. Pragacz, Characteristic numbers of degeneracy loci. In Enumerative algebraic geometry (Copenhagen, 1989), volume 123 of Contemp. Math., pages 189–197. Amer. Math. Soc., Providence, RI, 1991.
A. Parusiński, P. Pragacz, Chern-Schwartz-MacPherson classes and the Euler characteristic of degeneracy loci and special divisors, A.M.S. 8 (1995) 793–817.
A. Parusiński, P. Pragacz, Characteristic Classes of Hypersurfaces and Characteristic Cycles, Journal of Alg. Geom. 10 (2001), 63–79.
V.H. Pérez, D. Levcovitz, M. Saia Invariants, equisingularity and Euler obstruction of map germs from \(\mathbb C^n\) to \(\mathbb C^n\), Journal für die reine und angewandte Mathematik, 2005 (587), 145–167.
V.H.Pérez, E.C. Rizziolli, M.J. Saia, Whitney Equisingularity, Euler Obstruction and Invariants of Map Germs from \((\mathbb C^n, 0)\) to \((\mathbb C^3, 0)\), n > 3, Real and Complex Singularities, São Carlos Workshop 2004, 263–287.
V.H. Pérez, M. Saia, Euler Obstruction, polar multiplicities and equisingularity of map germs in O(n, p), n < p., International Journal of Mathematics, 17 (08), 887–903, 2006.
M.S. Pereira and M.A.S. Ruas Codimension two determinantal varieties with isolated singularities. Mathematica Scandinavica 115 (2), (2014), 161–172.
R. Piene, Polar classes of singular varieties, Ann. Sci. Ecole Norm. Sup. (4) 11 (1978), no. 2, 247–276.
R. Piene, Cycles polaires et classes de Chern pour les variétés projectives singulières, Séminaire sur les singularités des surfaces 1977–1978, Centre de Math., Ecole Polytechnique, 7–34. Travaux en Cours, vol. 37, Hermann, Paris, 1988, pp. 7–34 (French).
R. Piene, Polar varieties revisited, Computer algebra and polynomials, Lecture Notes in Comput. Sci., vol. 8942, Springer, Cham, 2015, pp. 139–150, arXiv:1601.03661.
R. Piene, Chern-Mather classes of toric varieties, arXiv:1604.02845, 2016.
H. Pittie, Characteristic classes of foliations. Research Notes in Mathematics, No. 10. Pitman Publishing, London-San Francisco, Calif.-Melbourne, 1976.
H. Poincaré, Complément à l’Analysis Situs, Rendiconti del Circolo matematico di Palermo, 13 (1899) pp 285–343. (Reprinted in Œuvres de Poincaré VI, Gauthier-Villars Ed. Paris, 1953, VI, 290–337).
L.S. Pontryagin, Mappings of a 3-dimensional sphere into an -dimensional complex. Dokl. Akad. Nauk SSSR, 34 (1942) pp. 35–37 (In Russian)
L.S. Pontryagin, Characteristic cycles on differentiable manifolds, Rec. Math. [Mat. Sbornik] N.S. 1947, vol. 21(63), Number 2, 233–284, in Russian, Amer. Math. Soc. Translations, series 1, no 32.
S. Promtapan, Equivariant Chern-Schwartz-MacPherson classes of symmetric and skew-symmetric determinantal varieties, Ph.D. Thesis, 2019, The University of North Carolina at Chapel Hill, United States
S. Promtapan and R. Rimányi„ Characteristic classes of symmetric and skew-symmetric degeneracy loci, arXiv:1908.07373.
R. Rimányi, Thom polynomials, symmetries and incidences of singularities, Invent. Math. 143 (2001), 499–521.
R. Rimányi, A. Varchenko, Equivariant Chern-Schwartz-MacPherson classes in partial flag varieties: interpolation and formulae, in Schubert Varieties, Equivariant Cohomology and Characteristic Classes, IMPANGA 2015 (eds. J. Buczynski, M. Michalek, E. Postingel), EMS 2018, pp. 225–235
R. Rimányi and Andrzej Weber. Elliptic classes of Schubert cells via Bott-Samelson resolution, 2019. J. Topol. 13 (2020), no. 3, 1139–1182.
EC Rizziolli, MJ Saia Polar Multiplicities and Euler obstruction of the stable types in weighted homogeneous map germs from \(\mathbb C^n\) to \(\mathbb C^3\), Singularities In Geometry And Topology, 723–748, 2007.
J. I. Rodriguez Solving the likelihood equations to compute Euler obstruction functions; arxiv:1804.10936.
J. I. Rodriguez and B. Wang. Computing Euler obstruction functions using maximum likelihood degrees. International Mathematics Research Notices, Volume 2020, Issue 20, (2020), pp. 6699–6712.
M. A. S. Ruas Old and new results on density of stable mappings To appear In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume IV. Springer, Cham.
C. Sabbah Quelques remarques sur la géométrie des espaces conormaux, in Differential Systems and Singularities (Luminy, 1983), Astérisque 130, Soc. Math. France, Paris, 1985, pp. 161–192.
C. Sabbah Espaces conormaux bivariants Thèse, Ecole Polytechnique, Paris, 1986.
K. Saito Theory of logarithmic differential forms and logarithmic vector fields, Journal of the Faculty of Science, the University of Tokyo. Sect. 1 A, Mathematics 27 (1980)
H. Santana Brasselet number and function-germs with a one-dimensional critical set, Bulletin of the Brazilian Mathematical Society, New Series, 52, pages 429–459 (2021) 265–291.
H. Sati, Twisted topological structures related to M-branes II: Twisted Wu and Wuc structures Int. J. Geom. Meth. Mod. Phys. 09 (2012).
H. Sati, Global anomalies in type IIB string theory (arXiv:1109.4385).
H. Schubert, Lösung des Charakteristiken-Problems für lineare R"̈ume beliebiger Dimension Mitt. Math. Gesellschaft Hamburg, 1 (1889) pp. 134–155
J. Schürmann, A generalized Verdier-type Riemann-Roch theorem for Chern-Schwartz-MacPherson classes arXiv:math/0202175 (2002).
J. Schürmann, A short proof of a formula of Brasselet, Lê and Seade for the Euler obstruction, arXiv:math/0201316 (2002).
J. Schürmann, Topology of Singular Spaces and Constructible Sheaves, Monografie Matematyczne 63, Birhäuser, Basel 2003.
J. Schürmann, Lectures on characteristic classes of constructible functions. In Topics in cohomological studies of algebraic varieties, Trends Math., pages 175–201. Birkhäuser, Basel, 2005. Edited by Piotr Pragacz.
J. Schürmann, Specialization of motivic Hodge-Chern classes, arXiv:0909.3478 (2009).
J. Schürmann, Nearby cycles and characteristic classes of singular spaces, Singularities in geometry and topology, 181–205, IRMA Lect. Math. Theor. Phys., 20, Eur. Math. Soc., Zürich, 2012.
J. Schürmann, Characteristic classes of mixed Hodge modules. Topology of Stratified Spaces, (editors G Friedman, E Hunsicker, A Libgober, L Maxim), Math. Sci. Res. Inst. Publ., vol. 58, Cambridge University Press (2010), pp. 419–470.
J. Schürmann, On the relation between Chern and Stiefel-Whitney classes of singular spaces, in Topology of Real Singularities and Motivic Aspects, Oberwolfach Report No. 48/2012.
J. Schürmann, Chern classes and transversality for singular spaces, Singularities in geometry, topology, foliations and dynamics, Pages 207–231, Birkhäuser, Cham (2015).
J. Schürmann, and M. Tibar, Index formula for MacPherson cycles of affine algebraic varieties, Tohoku Math. J. (2) 62 (2010), no. 1, 29–44.
J. Schürmann, S. Yokura A survey of characteristic classes of singular spaces, D. Cheniot, et al. (Eds.), Singularity Theory, Proceedings of the 2005 Marseille Singularity School and Conference, World Scientific (2007), pp. 865–952, dedicated to Jean-Paul Brasselet on his 60th birthday.
J. Schürmann, S. Yokura Motivic bivariant characteristic classes and related topics, J. Singul., 5 (2012), pp. 124–152.
J. Schürmann, S. Yokura Motivic bivariant characteristic classes, Advances in Mathematics, Volume 250, 15 January 2014, Pages 611–649
M.H.Schwartz, Classes obstructrices d’un sous-ensemble analytique complexe d’une variété lisse. Lille 1964, second version in Publ. de l’U.F.R. de Mathématiques de Lille, 11, 1986.
M.H.Schwartz, Classes caractéristiques définies par une stratification d’une variété analytique complexe, C. R. Acad. Sci. Paris Sér. I Math. 260, (1965), 3262–3264 et 3535–3537.
M.H.Schwartz, Classes et caractères de Chern-Mather des espaces linéaires, C. R. Acad. Sci. Paris Sér. I Math. 295 (1982) 399–402.
M.H. Schwartz: Champs radiaux et préradiaux associés à une stratification, C. R. Acad. Sci. Paris Sér. I Math. 303 (1986), no 6, 239–241.
M.H. Schwartz: Une généralisation du théorème de Hopf pour les champs sortants, C. R. Acad. Sci. Paris Sér. I Math. 303 (1986), no 7, 307–309.
M.H. Schwartz: Champs radiaux sur une stratification analytique, Travaux en cours, 39 (1997), Hermann, Paris.
M.-H. Schwartz, Classes de Chern des ensembles analytiques. Actualités mathématiques, Hermann, Paris, 2000.
J. Seade and T. Suwa, An adjunction formula for local complete intersections.Internat. J. Math. 9 (1998), 759–768.
J. Seade, M. Tibar and A. Verjovsky, Milnor numbers and Euler obstruction. Bull. Braz. Math. Soc. (N.S.), 36(2), pp. 275–283 (2005).
J. Seade, M. Tibar and A. Verjovsky. Global Euler obstruction and polar invariants Mathematische Annalen volume 333, pages 393–403 (2005).
M. Sebastiani, Sur la formule de Gonzalez-Verdier. Bol. Soc. Bras. Mat 16, 31–44 (1985).
J. Shaneson, Characteristic classes, lattice points and Euler-MacLaurin formulae, in Proceedings of the International Congress of Mathematicians, Vol. 1, 2 (Zürich, 1994), Birkhäuser, Basel, 1995, 612–624.
P. Siegel. Witt Spaces: a Geometric Cycle Theory for KO-Homology at odd primes, Amer. J. Math., 105, (1983), no. 5, 1067–1105
D. Siersma. Vanishing cycles and special fibres. In Singularity theory and its applications, Part I (Coventry, 1988/1989), volume 1462 of Lecture Notes in Math., pages 292–301. Springer, Berlin, 1991.
S. Simon A theorem of Poincaré-Hopf type ArXiv:0905.4559v1.
N. Steenrod, Products of cocycles and extensions of mappings, Ann. of Math., 48 (1947) 290–320
N. Steenrod, The Topology of Fibre Bundles Princeton University Press, Princeton 1951. New edition 7th printing, Princeton landmarks in mathematics and physics, 1999.
E. Stiefel Richtungsfelder und Fernparallelismus in n-dimensionalen Mannigfaltigkeiten Comm. Math. Helv., 25 (1935) 305–353.
R. E. Stong Cobordism of maps, Topology 5, (1966), 245–258.
D. Sullivan Combinatorial invariants of analytic spaces, In: Wall C. (eds) Proc. of Liverpool Singularities I. Lecture Notes in Math. 192. (1971), Springer Verlag. 165–177.
T. Suwa, Classes de Chern des intersections complètes locales, C.R. Acad. Sci. Paris, 324, (1996), 67–70.
T. Suwa, Indices of Vector Fields and Residues of Singular Holomorphic Foliations. Actualités Mathématiques, Hermann, Paris (1998).
T. Suwa, Characteristic classes of coherent sheaves on singular varieties, Advanced Studies in Pure Mathematics 29, 2000, Singularities - Sapporo 1998, 279–297.
T. Suwa, Complex Analytic Geometry, World Scientific, March 2021.
T. Suwa, Residues and hyperfunctions, To appear In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume III. Springer, Cham, 2022.
A. Szücs. Cobordism of singular maps, Geom. Top. 12, (2008), 2379–2452.
S. Tajima and K. Nabeshima, An Implementation of the Lê-Teissier Method for Computing Local Euler Obstructions Mathematics in Computer Science volume 13, pages 273–280 (2019).
B. Teissier, Variétés polaires. II. Multiplicités polaires, sections planes, et conditions de Whitney. In Algebraic geometry (La Rábida, 1981), volume 961, Lecture Notes in Math., pages 314–491. Springer, Berlin (1982).
B. Teissier, Sur la triangulation des morphismes sous-analytiques Publ. Math. I.H.E.S., 70 (1989), 169–198.
B. Teissier On B. Segre and the theory of polar varieties. Geometry and complex variables (Bologna, 1988/1990), / 357–367, Lecture Notes in Pure and Appl. Math., 132, Dekker, New York, 1991.
R. Thom, Quelques propriétés globales des variétés différentiables, Commentarii Mathematici Helvetici, 1954, p. 17–86
J.A. Todd, The Arithmetical Invariants of Algebraic Loci, Proceedings of the London Mathematical Society, 43 (1), 1937, 190–225,
D. Trotman, Stratification theory, Chapter 4 In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume I. Springer, Cham, 231–260.
P. Turaga, A. Veeraraghavan, R. Srivastava and A. Chellappa, Statistical computations on Grassmann and Stiefel manifolds for image and video-based recognition, IEEE Transactions on Pattern Analysis and Machine Intelligence, pp. 2273–2286, 2011.
J.L. Verdier, Dualité dans la cohomologie des espaces localement compacts Séminaire Bourbaki. Vol. 1965/1966. Exposé 300.
J.-L. Verdier, Stratifications de Whitney et théorème de Bertini-Sard, Inv. Math., 36 (1976), 295–312.
J.L. Verdier Spécialisation des classes de Chern, Astérisque 82–83, 149–159, (1981).
W. Veys Arc spaces, motivic integration and stringy invariants, Advanced Studies in Pure Mathematics, 2006: 529–572 (2006)
Z. Wang and V. Solo Particle filtering on the Siefel Manifold with Optimal Transport Computer Science. 2020, 58th IEEE Conference on Decision and Control (CDC). Published 14 December 2020.
A. Weber, Equivariant Chern classes and localization theorem, J. Singul., 5, 153–176, 2012.
A. Weber, Equivariant Hirzebruch classes for singular varieties, Selecta Math., 22 (3), 1413–1454, 2016.
H. Whitney Sphere spaces Proc. Nat. Acad. Sci., 21, 462–468, (1935).
H. Whitney, On the Theory of Sphere Bundles, Proc. Nat. Acad. Sci., 26, 143–153 (1940).
E. Witten, Topological Quantum Field Theory, Commun. Math. Phys., vol. 117, 1988.
E. Witten, Five-Brane effective action in M-theory, J. Geom. Phys. 22 (1997) 103–133.
Wu Wen-Tsün, Note sur les produits essentiels symétriques des espaces topologiques, C. R. Acad. Sci. Paris, 16 (1947), 1139–1141.
Wu Wen Tsün, On the product of sphere bundles and the duality theorem modulo two. Ann. of Math, 49 (1948) 641–653.
Wu Wen-Tsün, Classes caractéristiques et i-carrés d’une variété. C. R. Acad. Sci. Paris, 230 (1950), 508–511.
Wu Wen-Tsün, Les i-carrés dans une variété grassmannienne. C. R. Acad. Sci. Paris, 230 (1950), 918–920.
Wu Wen-Tsün, Les classes caractéristiques d’un espace fibré, in Séminaire Cartan, 1949–50, exposés 17 and 18, on 24th April and 8th May 1950.
Wu Wen-Tsün, Sur les classes caractéristiques des structures fibrées sphériques Thèse 1949, Actualités scientifiques et industrielles, Hermann, 1952.
Wu Wen-Tsün, Sur les classes caractéristiques des structures fibrées sphériques, Publ. de l’Inst. Math. de l’Univ. de Strasbourg, XI, Paris, Herman, 1952.
Wu Wen-Tsün, On squares in Grassmann manifolds, (in Chinese) Acta Math. Sinica 2 (1953), 203–229, Translation in Sixteen papers on Topology and One in Game Theory, American Mathematical Society Translations, Series 2, Volume 38, 1964, by Chow Sho-kwan, 235–258.
Wu Wen-Tsün, On Pontryagin classes V. (in Chinese) Acta Math. Sinica 5 (1955), 401–410, Translation in Sixteen papers on Topology and One in Game Theory, American Mathematical Society Translations, Series 2, Volume 38, 1964, by Chow Sho-kwan, 259–268.
Wu Wen-Tsün, On Chern Characteristic Classes of an Algebraic Variety, (in Chinese), Shuxue Jinzhan, 8 (1965) 395–401.
Wu Wen-Tsün, On Algebraic Varieties with Dual Rational Dissections, (in Chinese), Shuxue Jinzhan, 8 (1965) 402–409.
T. Yoshida, Universal Wu classes, Hiroshima Math. J. 17 (1987), no. 3, 489–493.
Y. Yang and L. Bauwens, 2018. State-Space Models on the Stiefel Manifold with a New Approach to Nonlinear Filtering, Econometrics, MDPI, Open Access Journal, vol. 6(4), pages 1–22,
S. Yokura, Polar Classes and Segre Classes on Singular Projective Varieties. Transactions of the American Mathematical Society, Vol. 298, No. 1 (Nov., 1986), pp. 169–191.
S. Yokura, Algebraic cycles and intersection homology, Proceedings of the A.M.S., Volume 103, No 1 (1988), P. 41–45.
S. Yokura, A formula for Segre classes of singular projective varieties, Pacific Journal of Mathematics, Vol. 146, No. 2, 1990, 385–394.
S. Yokura, On Cappell-Shaneson’s homology L-class of singular algebraic varieties Trans. Amer. Math. Soc., 347 (1995), pp. 1005–1012.
S. Yokura, On a Milnor class. Unpublished preprint, 1997.
S. Yokura, On a Verdier-type Riemann-Roch for Chern-Schwartz-MacPherson class, Topology and its applications, 94 (1999), 315–327.
S. Yokura, On characteristic classes of complete intersections. In Algebraic Geometry: Hirzebruch 70. Contemp. Math., 241, A. M. S. (1999), 349–369.
S. Yokura, An application of bivariant theory to Milnor classes. Top Appl. 115 (2001), 43–61.
S. Yokura, Remarks on Ginzburg’s Bivariant Chern Classes Proceedings of the American Mathematical Society, Vol. 130, No. 12 (Dec., 2002), pp. 346–347.
S. Yokura, On the uniqueness problem of bivariant Chern classes, Documenta Mathematica 7 (2002), 133–142.
S. Yokura, On Ginzburg’s Bivariant Chern Classes Transactions of the American Mathematical Society, Vol. 355, No. 6 (Jun., 2003), pp. 2501–2521
S. Yokura, Bivariant Chern classes for morphisms with nonsingular target varieties. Central European Journal of Mathematics volume 3, pages 614–626 (2005).
S. Yokura, Oriented bivariant theory, Internat. J. Math., 20 (10) (2009), pp. 1305–1334.
S. Yokura, Motivic characteristic classes, Topology of Stratified Spaces, (editors G Friedman, E Hunsicker, A Libgober, L Maxim), Math. Sci. Res. Inst. Publ., vol. 58, Cambridge Univ. Press (2010), pp. 375–418.
S. Yokura, Motivic Milnor classes. J. Singul. 1 (2010) 39–59.
S. Yokura, Topics of motivic characteristic classes Sugaku, Volume 68 (2016), Volume 68 Issue 2 Pages 151–176 (in Japanese).
S. Yokura, Motivic Hirzebruch class and related topics, To appear In: Cisneros-Molina, J.L., Lê, D.T., Seade, J. (eds.) Handbook of Geometry and Topology of Singularities, Volume IV. Springer, Cham.
X. Zhang. Local Euler Obstruction, Chern-Mather classes and Characteristic Classes of Determinantal Varieties. arxiv: 1706.02032.
X. Zhang. Chern-Schwartz-MacPherson Class of Determinantal Varieties. arxiv:1605.05380, May 2016.
X. Zhang. Equivariant Chern classes of Determinantal Varieties. arxiv, October 2017.
X. Zhang. Chern-Schwartz-MacPherson classes of hypersurfaces of projective varieties, PhD Thesis, Florida State University, April 11, 2018.
X. Zhang. Chern classes and characteristic cycles of determinantal varieties Journal of Algebra, Volume 497, (2018), Pages 55–91.
X. Zhang. Characteristic Classes of Homogeneous Essential Isolated Determinantal Varieties. arXiv:2011.12578, November 2020.
X. Zhang. Local Euler obstructions and Chern–Mather classes of determinantal varieties Communications in Algebra, Volume 49, 2021 - Issue 9, Pages 3941–3960.
X. Zhang. Local Euler Obstructions of Reflective Projective Varieties, arXiv:2103.06639v1, March 2021.
J. Zhou, Classes de Wu et classes de Mather, C. R. Acad. Sci. Paris, 319, Série I, (1994), 171–174.
J. Zhou, Morphisme cellulaire et classes de Chern bivariantes, Ann. Fac. Sci. Toulouse Math. Série 6, Tome 9 (2000) 161–192.
J. Zhou, Classes de Chern pour les variétés singulières, Classes de Chern en théorie bivariante, Thèse soutenue le 8 février 1995, Université d’Aix-Marseille II.
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Brasselet, JP. (2022). Characteristic Classes. In: Cisneros-Molina, J.L., Dũng Tráng, L., Seade, J. (eds) Handbook of Geometry and Topology of Singularities III. Springer, Cham. https://doi.org/10.1007/978-3-030-95760-5_5
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