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Related papers: Super volumes and KdV tau functions

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We define a Chern-Simons invariant for a certain class of infinite volume hyperbolic 3-manifolds. We then prove an expression relating the Bergman tau function on a cover of the Hurwitz space, to the lifting of the function $F$ defined by…

Differential Geometry · Mathematics 2012-09-20 Andrew Mcintyre , Jinsung Park

It is well-known that the algebra of vector fields on the circle acts on the space of Riemann surfaces with a marked point and a local parameter at this point. We show that this action has a natural realization in the soliton theory, indeed…

Mathematical Physics · Physics 2007-05-23 P. G. Grinevich , A. Yu. Orlov

We review the role played by tau functions of special type - called {\it Bergman} tau functions in various areas: theory of isomonodromic deformations, solutions of Einstein's equations, theory of Dubrovin-Frobenius manifolds, geometry of…

Mathematical Physics · Physics 2020-03-03 Dmitry Korotkin

We review various aspects of integrable hierarchies appearing in N=2 supersymmetric gauge theories. In particular, we show that the blowup function in Donaldson-Witten theory, up to a redefinition of the fast times, is a tau function for a…

High Energy Physics - Theory · Physics 2007-05-23 Jose D. Edelstein , Marta Gomez-Reino

We study the moduli space volume of BPS vortices in quiver gauge theories on compact Riemann surfaces. The existence of BPS vortices imposes constraints on the quiver gauge theories. We show that the moduli space volume is given by a vev of…

High Energy Physics - Theory · Physics 2021-03-17 Kazutoshi Ohta , Norisuke Sakai

We construct and study various properties of a negative spin version of the Witten $ r $-spin class. By taking the top Chern class of a certain vector bundle on the moduli space of twisted spin curves that parametrises $ r $-th roots of the…

Algebraic Geometry · Mathematics 2025-09-09 Nitin Kumar Chidambaram , Elba Garcia-Failde , Alessandro Giacchetto

Okuyama introduced a family of polynomials, whose coefficients depend on a parameter $q$, in his study of correlators in the double-scaled SYK model. He verified in small cases that their coefficients can be expressed in terms of certain…

Algebraic Geometry · Mathematics 2025-11-27 Norman Do , Paul Norbury

We define a theory of descendent integration on the moduli spaces of stable pointed disks. The descendent integrals are proved to be coefficients of the $\tau$-function of an open KdV heirarchy. A relation between the integrals and a…

Symplectic Geometry · Mathematics 2024-10-30 Rahul Pandharipande , Jake P. Solomon , Ran J. Tessler

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…

Algebraic Geometry · Mathematics 2018-12-12 Leonid Chekhov , Paul Norbury

We consider the Witten-Reshetikhin-Turaev invariants or Chern-Simons partition function at or around roots of unity $q=e^{2\pi i \frac{1}{K}}$ with rational level $K=\frac{r}{s}$ where $r$ and $s$ are coprime integers. From the exact…

High Energy Physics - Theory · Physics 2021-01-29 Hee-Joong Chung

We consider compactifications of higher-dimensional supergravities on Riemann-flat manifolds of dimension d ($3 \le d \le 7$) that fully break supersymmetry at the classical level on a resulting D-dimensional Minkowski space. We…

High Energy Physics - Theory · Physics 2025-08-05 Gianguido Dall'Agata , Fabio Zwirner

We propose a definition for a Tau function and a spinor kernel (closely related to Baker-Akhiezer functions), where times parametrize slow (of order 1/N) deformations of an algebraic plane curve. This definition consists of a formal…

Mathematical Physics · Physics 2015-03-19 Gaëtan Borot , Bertrand Eynard

The Weil-Petersson and Takhtajan-Zograf metrics on the Riemann moduli spaces of complex structures for an $n$-fold punctured oriented surface of genus $g,$ in the stable range $g+2n>2,$ are shown here to have complete asymptotic expansions…

Differential Geometry · Mathematics 2018-06-01 Richard Melrose , Xuwen Zhu

Inspired by recent formul\ae\ of Dubrovin, Yang, and Zagier, we interpret the tau function enumerating stationary Gromov-Witten invariants of $\mathbb{P}^1$ as an isomonodromic tau function associated with a difference equation. As a…

Mathematical Physics · Physics 2021-04-06 Marco Bertola , Giulio Ruzza

Recently R. Pandharipande, J. Solomon and R. Tessler initiated a study of the intersection theory on the moduli space of Riemann surfaces with boundary. They conjectured that the generating series of the intersection numbers is a specific…

Mathematical Physics · Physics 2020-02-24 A. Buryak

We generalize the result of Voronov (1988) to give an expression for the super Mumford form $\mu$ on the moduli spaces of super Riemann surfaces with Ramond and Neveu-Schwarz punctures. In the Ramond case we take the number of punctures to…

Mathematical Physics · Physics 2019-07-18 Daniel J. Diroff

We derive an analog of Mirzakhani's recursion relation for hyperbolic string vertices and investigate its implications for closed string field theory. Central to our construction are systolic volumes: the Weil-Petersson volumes of regions…

High Energy Physics - Theory · Physics 2024-11-11 Atakan Hilmi Fırat , Nico Valdes-Meller

For bordered surfaces S, we develop a complete parallel between the geometry of the combinatorial Teichm\"uller space $T_S^{comb}$ equipped with Kontsevich symplectic form $\omega_K$, and then the usual Weil-Petersson geometry of…

We develop a recursive approach to computing Neveu-Schwarz conformal blocks associated with n-punctured Riemann surfaces. This work generalizes the results of [1] obtained recently for the Virasoro algebra. The method is based on the…

High Energy Physics - Theory · Physics 2018-09-26 V. A. Belavin , R. V. Geiko

We identify the formulas of Buryak and Okounkov for the n-point functions of the intersection numbers of psi-classes on the moduli spaces of curves. This allows us to combine the earlier known results and this one into a principally new…

Algebraic Geometry · Mathematics 2021-12-21 Alexander Alexandrov , Francisco Hernández Iglesias , Sergey Shadrin