Logarithmic series and Hodge integrals in the tautological ring (with an appendix by D. Zagier)

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We describe a new perspective on the intersection theory of the moduli space of curves involving both Virasoro constraints and Gorenstein conditions. The main result of the paper is the computation of a basic 1-point Hodge integral series occurring in the tautological ring of the moduli space of nonsingular curves. In the appendix by D. Zagier, "Polynomials arising from the tautological ring", a detailed study is made of certain polynomials whose coefficients are intersection numbers on moduli space. The paper and the appendix together provide proofs of all previously conjectured formulas for 1-point integrals in the tautological ring, and of natural extensions of these formulas as well.
Minor changes. 26 pages, LaTeX2e. Appendix by D. Zagier: 12 pages, AmSTeX 2.1

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/58686

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0002112
 http://arxiv.org/abs/math/0002112

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arXiv