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Related papers: BKP and projective Hurwitz numbers

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The theory of Toeplitz quantization presented in our previous paper is extended and further developed to include diverse and interesting non-commutative realizations of the classical Euclidean plane. This is done using Hilbert spaces of…

Quantum Physics · Physics 2021-05-19 Micho Durdevich , Stephen Bruce Sontz

This is a summary of a recursive construction of solutions of the hbar-dependent KP hierarchy. We give recursion relations for the coefficients X_n of an hbar-expansion of the operator X = X_0 + \hbar X_1 + \hbar^2 X_2 + ... for which the…

Mathematical Physics · Physics 2012-06-12 Kanehisa Takasaki , Takashi Takebe

The main purpose of this paper is to compute all irreducible spherical functions on $G=\SU(3)$ of arbitrary type $\delta\in \hat K$, where $K={\mathrm{S}}(\mathrm{U}(2)\times\mathrm{U}(1))\simeq\mathrm{U}(2)$. This is accomplished by…

Representation Theory · Mathematics 2007-05-23 F. A. Grunbaum , I. Pacharoni , J. Tirao

In this work, we consider the generating function of Kim's q-Euler polynomials and introduce new generalization of q-Genocchi polynomials and numbers of higher order. Also, we give surprising identities for studying in Analytic Numbers…

Number Theory · Mathematics 2019-07-04 Serkan Araci , Mehmet Acikgoz , Jong Jin Seo

We define a generalized class of modified zeta series transformations generating the partial sums of the Hurwitz zeta function and series expansions of the Lerch transcendent function. The new transformation coefficients we define within…

Combinatorics · Mathematics 2016-11-11 Maxie D. Schmidt

We introduce a Frobenius algebra-valued KP hierarchy and show the existence of Frobenius algebra-valued $\tau$-function for this hierarchy. In addition we construct its Hamiltonian structures by using the Adler-Dickey-Gelfand method. As a…

Mathematical Physics · Physics 2020-12-16 Ian A. B. Strachan , Dafeng Zuo

In prior joint work with Lewis, we developed a theory of enriched set-valued $P$-partitions to construct a $K$-theoretic generalization of the Hopf algebra of peak quasisymmetric functions. Here, we situate this object in a diagram of six…

Combinatorics · Mathematics 2024-10-31 Eric Marberg

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

Correlators in topological theories are given by the values of a linear form on the products of operators from a commutative associative algebra (CAA). As a corollary, partition functions of topological theory always satisfy the generalized…

High Energy Physics - Theory · Physics 2015-05-30 A. Mironov , A. Morozov , S. Natanzon

Correlation function of twist operators is a natural quantity of interest in two-dimensional conformal field theory (2d CFT) and finds relevance in various physical contexts. For computing twist operator correlators associated with generic…

High Energy Physics - Theory · Physics 2023-07-10 Hewei Frederic Jia

It is shown that it is possible to write down tau functions for the $n$-component KP hierarchy in terms of non-abelian theta functions. This is a generalization of the rank 1 situation; that is, the relation of theta functions of Jacobians…

Algebraic Geometry · Mathematics 2016-08-15 F. J. Plaza Martín

Using the matrix-resolvent method and a formula of the second-named author on the $n$-point function for a KP tau-function, we show that the tau-function of an arbitrary solution to the Toda lattice hierarchy is a KP tau-function. We then…

Exactly Solvable and Integrable Systems · Physics 2025-08-12 Di Yang , Jian Zhou

We show that $b$-Hurwitz numbers with a rational weight are obtained by taking an explicit limit of a Whittaker vector for the $\mathcal{W}$-algebra of type $A$. Our result is a vast generalization of several previous results that treated…

Algebraic Geometry · Mathematics 2026-04-16 Nitin K. Chidambaram , Maciej Dołęga , Kento Osuga

We develop the theory of projective endofunctors for modules of Khovanov algebras $K$ of type B. In particular we compute the composition factors and the graded layers of the image of a simple module under such a projective functor. We then…

Representation Theory · Mathematics 2024-05-21 Thorsten Heidersdorf , Jonas Nehme , Catharina Stroppel

We consider partial sum rules for the homogeneous limit of the solution of the q-deformed Knizhnik--Zamolodchikov equation with reflecting boundaries in the Dyck path representation. We show that these partial sums arise in a solution of…

Combinatorics · Mathematics 2010-07-06 Jan de Gier , Pavel Pyatov , Paul Zinn-Justin

We derive a new explicit formula in terms of sums over graphs for the $n$-point correlation functions of general formal weighted double Hurwitz numbers coming from the Kadomtsev-Petviashvili tau functions of hypergeometric type (also known…

Combinatorics · Mathematics 2022-07-14 Boris Bychkov , Petr Dunin-Barkowski , Maxim Kazarian , Sergey Shadrin

The Hurwitz space is a compactification of the space of rational functions of a given degree. The Lyashko-Looijenga map assigns to a rational function the set of its critical values. It is known that the number of ramified coverings of CP^1…

Algebraic Geometry · Mathematics 2007-05-23 Sergei Lando , Dimitri Zvonkine

The one-matrix model is considered. The generating function of the correlation numbers is defined in such a way that this function coincide with the generating function of the Liouville gravity. Using the Kontsevich theorem we explain that…

High Energy Physics - Theory · Physics 2011-03-31 A. Belavin , M. Bershtein , G. Tarnopolsky

In this paper, we consider the higher Br\'ezin--Gross--Witten tau-functions, given by the matrix integrals. For these tau-functions we construct the canonical Kac--Schwarz operators, quantum spectral curves, and $W^{(3)}$-constraints. For…

Mathematical Physics · Physics 2025-04-02 Alexander Alexandrov , Saswati Dhara

We describe projective structures on a Riemann surface corresponding to monodromy groups which have trivial $SL(2)$ monodromies around singularities and trivial $PSL(2)$ monodromies along homologically non-trivial loops on a Riemann…

Mathematical Physics · Physics 2018-03-14 Dmitry Korotkin