Bilinear Equations on Painlevé τ Functions from CFT
M. Bershtein,A. I. Shchechkin +1 more
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In 2012, Gamayun, Iorgov, and Lisovyy conjectured an explicit expression for the Painleve VI τ function in terms of the Liouville conformal blocks with central charge c = 1.Abstract:
In 2012, Gamayun, Iorgov, and Lisovyy conjectured an explicit expression for the Painleve VI τ function in terms of the Liouville conformal blocks with central charge c = 1. We prove that the proposed expression satisfies Painleve VI τ function bilinear equations (and therefore prove the conjecture). The proof reduces to the proof of bilinear relations on conformal blocks. These relations were studied using the embedding of a direct sum of two Virasoro algebras into a sum of Majorana fermion and Super Virasoro algebra. In the framework of the AGT correspondence, the bilinear equations on the conformal blocks can be interpreted in terms of instanton counting on the minimal resolution of \({\mathbb{C}^2/\mathbb{Z}_2}\) (similarly to Nakajima–Yoshioka blow-up equations).read more
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On Painlevé/gauge theory correspondence
TL;DR: In this paper, the relation between Painleve equations and four-dimensional rank one theories was elucidated by identifying the connection associated with painleve isomonodromic problems with the oper limit of the flat connection of the Hitchin system associated with gauge theories by studying the corresponding renormalization group flow.
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Seiberg–Witten theory as a Fermi gas
TL;DR: In this paper, the dual partition function of SU(2) Super Yang-Mills theory in a self-dual π-Omega background was shown to be equivalent to the spectral determinant of an ideal Fermi gas.
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Connection problem for the sine-Gordon/Painlev\'e III tau function and irregular conformal blocks
A. Its,Oleg Lisovyy,Yu. Tykhyy +2 more
TL;DR: In this article, the short distance expansion of the tau function of the radial sine-Gordon/Painleve III equation is given by a convergent series which involves irregular $c=1$ conformal blocks and possesses certain periodicity properties with respect to monodromy data.
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Connection Problem for the Sine-Gordon/Painlevé III Tau Function and Irregular Conformal Blocks
TL;DR: In this article, the authors conjecture an exact expression for the connection constant providing relative normalization of the two series, up to an elementary prefactor, by the generating function of the canonical transformation between the two sets of coordinates.
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Quantum curves and q -deformed Painlevé equations
TL;DR: In this article, the q-difference Painleve equations are related to the grand canonical topological string partition functions on the corresponding geometry and the zeros of the tau functions compute the exact spectrum of the associated quantum integrable systems.
References
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Infinite Conformal Symmetry in Two-Dimensional Quantum Field Theory
TL;DR: In this paper, the authors present an investigation of the massless, two-dimentional, interacting field theories and their invariance under an infinite-dimensional group of conformal transformations.
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Liouville Correlation Functions from Four-dimensional Gauge Theories
TL;DR: In this paper, the authors conjecture an expression for the Liouville theory conformal blocks and correlation functions on a Riemann surface of genus g and n punctures as the Nekrasov partition function of a certain class of SCFTs recently defined by one of the authors.
Book
Vertex Algebras and Algebraic Curves
Edward Frenkel,David Ben-Zvi +1 more
TL;DR: Vertex algebra bundles are associated with Lie algebras and operator product expansion (OPE) as mentioned in this paper, and vertex algebra bundles can be used to represent internal symmetries of vertex algebra.
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Instanton counting on blowup. I. 4-dimensional pure gauge theory
Hiraku Nakajima,Kota Yoshioka +1 more
TL;DR: In this article, the integration in the equivariant cohomology over the moduli spaces of instantons on ℝ4 gives a deformation of the Seiberg-Witten prepotential for N = 2 SUSY Yang-Mills theory.