Simultaneous algorithmic resolution of singularities
- 62 Downloads
- 2 Citations
Abstract
This paper studies the concept of algorithmic equiresolution of a family of embedded varieties or ideals, which means a simultaneous resolution of such a family compatible with a given (suitable) algorithm of resolution in characteristic zero. The paper’s approach is more indirect: it primarily considers the more general case of families of basic objects (or marked ideals). A definition of algorithmic equiresolution is proposed, which applies to families whose parameter space T may be non-reduced, e.g., the spectrum of a suitable artinian ring. Other definitions of algorithmic equiresolution are also discussed. These are geometrically very natural, but the parameter space T of the family must be assumed regular. It is proven that when T is regular all the proposed definitions are equivalent.
Keywords
Resolution algorithm Embedded variety Coherent ideal Basic objectMathematics Subject Classification
14B05 14E15 14F05 14D99Preview
Unable to display preview. Download preview PDF.
References
- 1.André M.: Homologie des algèbres commutatives. Springer, Berlin (1974)CrossRefMATHGoogle Scholar
- 2.Bravo A., Encinas S., Villamayor O.: A simplified proof of desingularization and applications. Rev. Mat. Iberoamericana 21, 349–458 (2005)MathSciNetCrossRefMATHGoogle Scholar
- 3.Bierstone E., Milman P.: Canonical desingularization in characteristic zero by blowing up the maxium strata of a local invariant. Invent. Math. 128, 207–302 (1997)MathSciNetCrossRefMATHGoogle Scholar
- 4.Bierstone E., Milman P.: Functoriality in resolution of singularities. Publ. Res. Inst. Math. Sci. 44, 609–639 (2008)MathSciNetCrossRefMATHGoogle Scholar
- 5.Bierstone E., Milman P.: Desingularization algorithms I. The role of exceptional divisors. Mosc. Math. J. 3, 751–805 (2003)MathSciNetMATHGoogle Scholar
- 6.Cutkovsky, S.: Resolution of Singularities, Graduate Studies in Mathematics, vol. 63. American Mathematical Soceity, Providence, RI (2004)Google Scholar
- 7.Encinas S., Hauser H.: Strong resolution of singularities in characteristic zero. Comm. Math. Helv. 77, 821–845 (2002)MathSciNetCrossRefMATHGoogle Scholar
- 8.Encinas S., Nobile A., Villamayor O.: On algorithmic equi-resolution and stratification of Hilbert schemes. Proc. Lond. Math. Soc. 86, 607–648 (2003)CrossRefMATHGoogle Scholar
- 9.Encinas, S., Villamayor, O.: A course on constructive desingularization and equivariance. In: Hauser, H., Lipman, J., Oort F., Quirós, A. (eds.) Resolution of Singularities, Progress in Mathematics, vol. 181. Birkhauser, Boston, MA (2000)Google Scholar
- 10.Hartshorne R.: Algebraic Geometry. Springer, New York, NY (1977)CrossRefMATHGoogle Scholar
- 11.Kollar J.: Lectures on Resolution of Singularities. Princeton University Press, Princeton, NJ (2007)MATHGoogle Scholar
- 12.Matsumura H.: Commutative Ring Theory. Cambridge University Press, Cambridge (1989)MATHGoogle Scholar
- 13.Nobile, A.: Algorithmic equiresolution of deformations of embedded algebraic varieties. Revista Matemática Hispanoamericana 25, 995–1054 (2009, to appear)Google Scholar
- 14.Wlodarczyk J.: Simple Hironaka resolution in characteristic zero. J. A.M.S. 18, 779–822 (2005)MathSciNetMATHGoogle Scholar