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We study the $n$-point differentials corresponding to Kadomtsev-Petviashvili tau functions of hypergeometric type (also known as Orlov-Scherbin partition functions), with an emphasis on their $\hbar^2$-deformations and expansions. Under the…

Mathematical Physics · Physics 2024-06-12 Boris Bychkov , Petr Dunin-Barkowski , Maxim Kazarian , Sergey Shadrin

We investigate subclasses of generalized Bernstein functions related to complete Bernstein and Thorin-Bernstein functions. Representations in terms of incomplete beta and gamma as well as hypergeometric functions are presented. Several…

Classical Analysis and ODEs · Mathematics 2023-11-10 Henrik Laurberg Pedersen , Stamatis Koumandos

We study the intersection theory of the $\Theta^{r,s}$-classes, where $r \geq 2$ and $1 \le s \le r-1$, which are cohomological field theories obtained as the top degrees of Chiodo classes. We show that the recently introduced generalized…

Algebraic Geometry · Mathematics 2025-05-19 Vincent Bouchard , Nitin K. Chidambaram , Alessandro Giacchetto , Sergey Shadrin

We consider the Gaudin model associated to a point z in C^n with pairwise distinct coordinates and to the subspace of singular vectors of a given weight in the tensor product of irreducible finite-dimensional sl_2-representations, [G]. The…

Algebraic Geometry · Mathematics 2007-05-23 I. Scherbak

This is the third in a series of papers attempting to describe a uniform geometric framework in which many integrable systems can be placed. A soliton hierarchy can be constructed from a splitting of an infinite dimensional group $L$ as…

Exactly Solvable and Integrable Systems · Physics 2014-06-25 Chuu-Lian Terng , Karen Uhlenbeck

An analogue of Brylinski's knot beta function is defined for a compactly supported (Schwartz) distribution $T$ on $d$-dimensional Euclidean space. This is a holomorphic function on a right half-plane. If $T$ is a (uniform) double-layer on a…

Differential Geometry · Mathematics 2023-03-06 Pooja Rani , M. K. Vemuri

Thomas-Whitehead (TW) gravity was recently introduced as a projective gauge theory of gravity over a d-dimensional manifold that embeds reparameterization invariance into the action functional for gravitation through the use of the…

High Energy Physics - Theory · Physics 2022-08-31 Calvin Mera , Vincent G. J. Rodgers , Patrick Vecera

In the limit of the lattice spacing going to zero, we consider the dimer model on isoradial graphs in the presence of singular $SL(N,\mathbb{C})$ gauge fields flat away from a set of punctures. We consider the cluster expansion of this…

High Energy Physics - Theory · Physics 2023-10-26 Sri Tata

For a general ${\cal N}=1$ supersymmetric gauge theory regularized by higher covariant derivatives we prove in all orders that the $\beta$-function defined in terms of the bare couplings is given by integrals of double total derivatives…

High Energy Physics - Theory · Physics 2020-01-08 K. V. Stepanyantz

Generalized integral formulas involving the generalized Bessel-Maitland function are considered and it expressed in terms of generalized Wright hypergeometric functions. By assuming appropriate values of the parameters in the main results,…

Classical Analysis and ODEs · Mathematics 2016-05-31 M. S. Abouzaid , A. H. Abusufian , K. S. Nisar

We introduce a novel approach for computing the twist operator correlators (TOC) in two-dimensional conformal field theories (2d CFT) and the closely related isomonodromic tau functions. The method stems from the formal path integral…

High Energy Physics - Theory · Physics 2023-09-15 Hewei Frederic Jia

A Bernstein-von Mises theorem is derived for general semiparametric functionals. The result is applied to a variety of semiparametric problems in i.i.d. and non-i.i.d. situations. In particular, new tools are developed to handle…

Statistics Theory · Mathematics 2016-08-11 Ismaël Castillo , Judith Rousseau

Let X be a smooth complex projective variety, and let Y in X be a smooth very ample hypersurface such that -K_Y is nef. Using the technique of relative Gromov-Witten invariants, we give a new short and geometric proof of (a version of) the…

Algebraic Geometry · Mathematics 2007-05-23 Andreas Gathmann

We propose a Hodge field theory construction that captures algebraic properties of the reduction of Zwiebach invariants to Gromov-Witten invariants. It generalizes the Barannikov-Kontsevich construction to the case of higher genera…

Quantum Algebra · Mathematics 2010-10-04 A. Losev , S. Shadrin , I. Shneiberg

We describe Zhu recursion for a vertex operator algebra (VOA) and its modules on a genus $g$ Riemann surface in the Schottky uniformisation. We show that $n$-point (intertwiner) correlation functions are written as linear combinations of…

Quantum Algebra · Mathematics 2024-10-30 Michael P. Tuite , Michael Welby

We derive Fredholm determinant representation for isomonodromic tau functions of Fuchsian systems with $n$ regular singular points on the Riemann sphere and generic monodromy in $\mathrm{GL}(N,\mathbb C)$. The corresponding operator acts in…

Mathematical Physics · Physics 2018-10-30 P. Gavrylenko , O. Lisovyy

The Burgers--KdV hierarchy was introduced towards understanding intersection numbers on the moduli space of Riemann surfaces with boundaries. The goal of this paper is to derive the Dubrovin--Zhang type loop equation for the topological…

Mathematical Physics · Physics 2024-09-20 Di Yang , Chunhui Zhou

We attempt a direct derivation of a conformal field theory description of 2D quantum gravity~+~matter from the formalism of integrable hierarchies subjected to Virasoro constraints. The construction is based on a generalization of the…

High Energy Physics - Theory · Physics 2010-12-01 A. M. Semikhatov

We present the fermionic representation for the q-deformed hypergeometric functions related to Schur polynomials considered by S.Milne \cite{Milne}. For $q=1$ these functions are also known as hypergeometric functions of matrix argument…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 A. Yu. Orlov , D. M. Scherbin

We propose a new bilinear Hirota equation for $\tau$-functions associated with the $E_8$ root lattice, that provides a "lens" generalisation of the $\tau$-functions for the elliptic discrete Painlev\'e equation. Our equations are…

Exactly Solvable and Integrable Systems · Physics 2021-02-10 Andrew P. Kels , Masahito Yamazaki