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Multispecies Weighted Hurwitz Numbers

Mathematical Physics 2018-06-26 v7 High Energy Physics - Theory Combinatorics math.MP

Abstract

The construction of hypergeometric 2D2D Toda τ\tau-functions as generating functions for weighted Hurwitz numbers is extended to multispecies families. Both the enumerative geometrical significance of multispecies weighted Hurwitz numbers, as weighted enumerations of branched coverings of the Riemann sphere, and their combinatorial significance in terms of weighted paths in the Cayley graph of SnS_n are derived. The particular case of multispecies quantum weighted Hurwitz numbers is studied in detail.

Keywords

Cite

@article{arxiv.1504.07512,
  title  = {Multispecies Weighted Hurwitz Numbers},
  author = {J. Harnad},
  journal= {arXiv preprint arXiv:1504.07512},
  year   = {2018}
}

Comments

this is substantially enhanced version of arXiv:1410.8817

R2 v1 2026-06-22T09:24:18.708Z