Abstract
We give some estimations of the Łojasiewicz exponent of nondegenerate surface singularities in terms of their Newton diagrams. We also give an exact formula for the Łojasiewicz exponent of such singularities in some special cases. The results are stronger than Fukui inequality [8]. It is also a multidimensional generalization of the Lenarcik theorem [13].
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References
O. M. Abderrahmane, On the Łojasiewicz exponent and Newton polyhedron, Kodai Math. J., 28 (2005), 106–110.
C. Bivià-Ausina, Łojasiewicz exponents, the integral closure of ideals and Newton polyhedra, J. Math. Soc. Japan, 55 (2003), 655–668.
C. Bivià-Ausina and S. Encinas, The Łojasiewicz exponent of a set of weighted homogeneous ideals, J. Pure Appl. Algebra, 215 (2011), 578–588.
C. Bivià-Ausina and S. Encinas, Łojasiewicz exponent of families of ideals, Rees mixed multiplicities and Newton filtrations, arXiv:1103.1731v1 [math.AG] (2011).
S. S. Chang and Y. C. Lu, On C 0 sufficiency of complex jets, Canad. J. Math., 25 (1973), 874–880.
J. Cha̧dzyński and T. Krasiński, The Łojasiewicz exponent of an analytic mapping of two complex variables at an isolated zero, Banach Center Publ., 20 (1988), 139–146.
J. Cha̧dzyński and T. Krasiński, Resultant and the Łojasiewicz exponent, Ann. Polon. Math., 61 (1995), 95–100.
T. Fukui, Łojasiewicz type inequalities and Newton diagrams, Proc. Amer. Math. Soc., 112 (1991), 1169–1183.
R. C. Gunning, Introduction to Holomorphic Functions of Several Variables, Vol. II, Wadsworth & Brooks/Cole (1990).
A. Haraux and T. S. Pham, On the Łojasiewicz exponents of quasi-homogeneous functions, Preprints of the Laboratoire Jacques-Louis Lions 2007, Université Pierre et Marie Curie, No R07041 (http://www.ann.jussieu.fr/publications/2007/R07041.pdf).
A. G. Kouchnirenko, Polyèdres de Newton et nombres de Milnor, Invent. Math., 32 (1976), 1–31.
T. Krasiński, G. Oleksik and A. Płoski, The Łojasiewicz exponent of an isolated weighted homogeneous surface singularity, Proc. Amer. Math. Soc., 137 (2009), 3387–3397.
A. Lenarcik, On the Łojasiewicz exponent of the gradient of a holomorphic function, Banach Center Publ., 44 (1998), 149–166.
M. Lejeune-Jalabert and B. Teissier, Clôture intégrale des idéaux et équisingularité, École Polytech. 1974; reissued in, Ann. de la Fac. Sci. Toulouse, 17 (2008), 781–859.
G. Oleksik, The Łojasiewicz exponent of nondegenerate singularities, Univ. Iagel. Acta Math., 47 (2009), 301–308.
A. Płoski, Sur l’exposant d’une application analytique I, Bull. Pol. Acad. Sci. Math., 32 (1984), 669–673.
A. Płoski, Sur l’exposant d’une application analytique II, Bull. Pol. Acad. Sci. Math., 33 (1985), 123–127.
T. S. Pham, Łojasiewicz exponents and Newton Polyhedra, Preprint of The Abdus Salam International Centre for Theoretical Physics IC, 58 (2006).
B. Teissier, Variétés polaires, Invent. Math., 40 (1977), 267–292.
S. Tan, S. S.-T. Yau and H. Zuo, Łojasiewicz inequality for weighted homogeneous polynomial with isolated singularity, Proc. Amer. Math. Soc., 138 (2010), 3975–3984.
S. S.-T. Yau, Topological types and multiplicities of isolated quasi-homogeneous surface singularities, Bull. Amer. Math. Soc., 19 (1988), 447–454.
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Oleksik, G. The Łojasiewicz exponent of nondegenerate surface singularities. Acta Math Hung 138, 179–199 (2013). https://doi.org/10.1007/s10474-012-0285-5
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DOI: https://doi.org/10.1007/s10474-012-0285-5
Key words and phrases
- Lojasiewicz exponent
- isolated singularity
- nondegeneracy in the Kouchnirenko sense
- degree of C 0 sufficiency