Intersection Numbers on the Moduli Spaces of Stable Maps in Genus 0

Details Intersection Numbers on the Moduli Spaces of Stable Maps in Genus 0 Intersection Numbers on the Moduli Spaces of Stable Maps in Genus 0

1998-01-02

arxiv.org/abs/math/9801004v3

Mathematics

Algebraic Geometry

LaTeX2e with Postscript figures, 29 pages, reference added

Scientific paper

Let $V$ be a smooth, projective, convex variety. We define tautological $\psi$ and $\kappa$ classes on the moduli space of stable maps $\M_{0,n}(V)$, give a (graphical) presentation for these classes in terms of boundary strata, derive differential equations for the generating functions of the Gromov-Witten invariants of $V$ twisted by these tautological classes, and prove that these intersection numbers are completely determined by the Gromov-Witten invariants of $V$. This results in families of Frobenius manifold structures on the cohomology ring of $V$ which includes the quantum cohomology as a special case.

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