2019
DOI: 10.1142/s0129167x19500149
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Topological recursion with hard edges

Abstract: We prove a Givental type decomposition for partition functions that arise out of topological recursion applied to spectral curves. Copies of the Konstevich-Witten KdV tau function arise out of regular spectral curves and copies of the Brezin-Gross-Witten KdV tau function arise out of irregular spectral curves. We present the example of this decomposition for the matrix model with two hard edges and spectral curve (x 2 − 4)y 2 = 1. CONTENTS

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Cited by 23 publications
(35 citation statements)
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“…Example 4 Chekhov and Norbury [13] consider topological recursion applied to the spectral curve x 2 y 2 − 4y 2 − 1 = 0 given by the rational parametrisation…”
Section: Topological Recursionmentioning
confidence: 99%
“…Example 4 Chekhov and Norbury [13] consider topological recursion applied to the spectral curve x 2 y 2 − 4y 2 − 1 = 0 given by the rational parametrisation…”
Section: Topological Recursionmentioning
confidence: 99%
“…It arises out of topological recursion applied to the spectral curve (x, y) = ( 1 2 z 2 , 1/z) [9] and more generally to any spectral curve with points locally of this form near a zero of dx, [7].…”
Section: 22mentioning
confidence: 99%
“…k1,...,kn M g,n to the specialization ǫ = −1 in(7)). It turns out that the monotone Hurwitz numbers are governed by the very same topological recursion with a special choice of the expansion point z = 1 and the local coordinate X at this point defined by the change z = √ 1 − 4X.Proposition 5.9 ([10]).…”
mentioning
confidence: 99%
“…We assume that the function y is meromorphic in the neighbourhoods of the zeros of dx. We allow the spectral curve to be irregular [CN19], that is, the poles of y may coincide with the zeroes of dx.…”
Section: Tau-functions Identification and Topological Recursionmentioning
confidence: 99%