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math-ph2018
Generalisations of the Harer-Zagier recursion for 1-point functions
Anupam Chaudhuri, Norman Do
Harer and Zagier proved a recursion to enumerate gluings of a -gon that result in an orientable genus surface, in their work on Euler characteristics of moduli spaces of cu…
math.GT2018
Towards the topological recursion for double Hurwitz numbers
Norman Do, Maksim Karev
Single Hurwitz numbers enumerate branched covers of the Riemann sphere with specified genus, prescribed ramification over infinity, and simple branching elsewhere. They exhibit a r…