On the structure of Goulden-Jackson-Vakil formula

Authors
Publication date 2009
Journal Mathematical Research Letters
Volume | Issue number 16 | 4
Pages (from-to) 703-710
Organisations
  • Faculty of Science (FNWI) - Korteweg-de Vries Institute for Mathematics (KdVI)
Abstract We study the structure of the Goulden-Jackson-Vakil formula that relates Hurwitz numbers to some conjectural "intersection numbers" on a conjectural family of varieties X-g,X-n of dimension 4(g) - 3 + n. We give explicit formulas for the properly arranged generating function for these "intersection numbers", and prove that it satisfies Hirota equations. This generalizes and substantially simplifies our earlier results with Zvonkine.
Document type Article
Published at http://www.mrlonline.org/mrl/2009-016-004/2009-016-004-011.html
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