Abstract
We introduce a cohomology, called extendable cohomology, for abstract complex singular varieties based on suitable differential forms. Beside a study of the general properties of such a cohomology, we show that, given a complex vector bundle, one can compute its topological Chern classes using the extendable Chern classes, defined via a Chern–Weil type theory. We also prove that the localizations of the extendable Chern classes represent the localizations of the respective topological Chern classes, thus obtaining an abstract residue theorem for compact singular complex analytic varieties. As an application of our theory, we prove a Camacho–Sad type index theorem for holomorphic foliations of singular complex varieties.
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References
Abate M., Bracci F., Tovena F.: Index theorems for holomorphic self-maps. Ann. Math. 159, 819–864 (2004)
Abate, M., Bracci, F., Tovena, F.: Index theorems for holomorphic maps and foliations. Indiana Uni. Math. J. (to appear)
Baum P., Bott R.: Singularities of holomorphic foliations. J. Differ. Geom. 7, 279–342 (1972)
Bloom T., Herrera M.: De Rham cohomology of an analytic space. Inv. Math. 7, 275–296 (1969)
Bott R., Tu L.W.: Differential Forms in Algebraic Topology. Springer, Berlin (1982)
Bracci F.: First order extension of holomorphic foliations. Hokkaido Math. J. 33(2), 473–490 (2004)
Bracci F., Suwa T.: Residues for singular pairs and dynamic of Biholomorphic maps of singular surfaces. Int. J. Math. 15(5), 443–455 (2004)
Camacho C., Sad P.: Invariant varieties through singularities of holomorphic vector fields. Ann. Math. 115(2), 579–595 (1982)
Checcucci V., Tognoli A., Vesentini E.: Lezioni di Topologia Generale. Feltrinelli, Milano (1968)
Ferrari A.: Cohomology and holomorphic differential forms on complex analytic spaces. Ann. Scuola Norm. Sup. di Pisa XXIV(1), 65–77 (1970)
Ferrari A.: Coomologia e forme differenziali sugli spazi analitici complessi. Ann. Scuola Norm. Sup. di Pisa XXV(3), 469–480 (1971)
Goresky M., MacPherson R.: Stratified Morse Theory. Springer, Berlin (1988)
Gunning, R.C.: Introduction to Holomorphic Functions of Several Variables, vol. 1, 2, 3. Wadsworth and Brooks, Belmont (1990)
Hardt R.: Triangulation of subanalytic sets and proper light subanalytic maps. Inv. Math. 38, 207–217 (1977)
Hartshorne R.: Algebraic geometry. Springer, Berlin (1977)
Herrera M.: Integration on a semianalytic set. Bull. Soc. Math. France 94, 141–180 (1966)
Herrera M.: De Rham theorems on semianalytic sets. Bull. Am. Math. Soc. 73(3), 414–418 (1967)
Kobayashi S.: Differential Geometry of Complex Vector Bundles. Princeton University Press, Princeton (1987)
Lehmann D., Suwa T.: Residues of holomorphic vector fields relative to singular invariant subvarieties. J. Differ. Geom. 42, 165–192 (1995)
Lojasiewicz S.: Triangulation of semianalytic sets. Ann. Scuola Norm. Sup. di Pisa 18, 449–474 (1964)
Munkres J.R.: Elements of Algebraic Topology. Addison-Wesley, Menlo Park (1984)
Perrone, C.: Extendable cohomologies for complex analytic varieties. Ph.D. Thesis, Università di Roma “Tor Vergata” (2008)
Steenrod N.: The Topology of Fibre Bundles. Princeton University Press, Princeton (1951)
Suwa T.: Indices of Vector Fields and Residues of Singular Holomorphic Foliations. Hermann, Paris (1998)
Suwa T.: Residues of Chern classes on singular varieties. In: Brasselet, J.P., Suwa, T. (eds) Singularités Franco-Japonaise (Séminaires et Congrès, 10), pp. 265–285. Société Mathematique de France, Paris (2005)
Suwa, T.: Residue theoretical approach to intersection theory. Notes for a course given at “The 9th Workshop on Real and Complex Singularities” held in São Carlos in July 2006, Niigata (2007)
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Perrone, C. Extendable cohomologies for complex analytic varieties. Math. Ann. 345, 83–132 (2009). https://doi.org/10.1007/s00208-009-0343-7
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DOI: https://doi.org/10.1007/s00208-009-0343-7