Hurwitz numbers and intersections on moduli spaces of curves
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🧮 math.AG
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curvesgenusmoduliarticlebranchingcomplicatedcoveringsdifferent
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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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