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Hurwitz numbers and intersections on moduli spaces of curves

T. Ekedahl·S. Lando·M. Shapiro·A. Vainshtein
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Abstract

This article is an extended version of preprint math.AG/9902104. We find an explicit formula for the number of topologically different ramified coverings of a sphere by a genus g surface with only one complicated branching point in terms of Hodge integrals over the moduli space of genus g curves with marked points.

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T. Ekedahl, S. Lando, M. Shapiro, A. Vainshtein. 2000-10-09. Hurwitz numbers and intersections on moduli spaces of curves. https://doi.org/10.1007/s002220100164

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