Genus-asymptotic roots conjecture for deformed monotone Hurwitz numbers

From papers

Fix positive integers μ1,,μn\mu_1,\ldots,\mu_n whose sum is dd. Let the roots of the polynomial Hg,nt(μ1,,μn)\vec{H}^t_{g,n}(\mu_1,\ldots,\mu_n) be ordered from smallest to largest. Genus-asymptotic roots conjecture. As gg\to\infty, these roots respectively approach

d21,d32,d43,,2d3,1d2,0.-\frac{d-2}{1},\quad-\frac{d-3}{2},\quad-\frac{d-4}{3},\quad\ldots,\quad-\frac{2}{d-3},\quad-\frac{1}{d-2},\quad 0.

Moreover, convergence to a number less than 1-1 is increasing from below, while convergence to a nonzero number greater than 1-1 is decreasing from above. This conjecture is supported by extensive data, but remains open.

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Sources & referencesView supporting material

Primary source

Xavier Coulter, Norman Do and Ellena Moskovsky, “Integration on complex Grassmannians, deformed monotone Hurwitz numbers, and interlacing phenomena”, arXiv:2308.04015 (2023).

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