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Journal of the American Mathematical Society
Journal of the American Mathematical Society
ISSN 1088-6834(online) ISSN 0894-0347(print)

 

Virtual moduli cycles and Gromov-Witten invariants of algebraic varieties


Authors: Jun Li and Gang Tian
Journal: J. Amer. Math. Soc. 11 (1998), 119-174
MSC (1991): Primary 14D20
MathSciNet review: 1467172
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Abstract: In this paper, we define the virtual moduli cycle of moduli spaces with perfect tangent-obstruction theory. The two interesting moduli spaces of this type are moduli spaces of vector bundles over surfaces and moduli spaces of stable morphisms from curves to projective varieties. As an application, we define the Gromov-Witten invariants of smooth projective varieties and prove all its basic properties.


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Additional Information

Jun Li
Affiliation: Department of Mathematics, Stanford University, Stanford, California 94305
Email: jli@gauss.stanford.edu

Gang Tian
Affiliation: Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
Email: tian@math.mit.edu

DOI: http://dx.doi.org/10.1090/S0894-0347-98-00250-1
PII: S 0894-0347(98)00250-1
Keywords: Moduli space, intersection theory, invariant
Received by editor(s): September 25, 1996
Received by editor(s) in revised form: July 30, 1997
Additional Notes: Both authors were supported in part by NSF grants, and the first author was also supported by an A. Sloan fellowship and Terman fellowship.
Article copyright: © Copyright 1998 American Mathematical Society