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Published on Department of Mathematics (http://www.math.ohio-state.edu)

On cyclic Hurwitz-Hodge integrals

By lchen
Created Apr 7 2008 - 2:33pm
Apr 29 2008 - 4:30pm
Apr 29 2008 - 5:30pm
Hsian-Hua Tseng
Wisconsin
http://www.math.ohio-state.edu/~lchen/seminar.html [1]
Scott Lab 241
Inside moduli spaces of stable pointed curves one can consider loci which parametries curves that admit Hurwitz cover structures to over curves. These loci are called Hurwitz loci. Hurwitz-Hodge integrals are by definition integrals over these loci of Chern classes of suitably defined Hodge bundles. Hurwitz-Hodge integrals arise naturally as Gromov-Witten invariants of local orbifolds. In this talk we'll review the definition of Hurwitz-Hodge integral. We'll discuss a result, proven with Paul Johnson and Rahul Pandharipande, which expresses cyclic Hurwitz-Hodge integrals with one Hodge class as double Hurwitz numbers.

Source URL:
http://www.math.ohio-state.edu/node/30000