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Related papers: 2D Toda \tau-functions as combinatorial generating…

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We show that conformal maps of simply connected domains with an analytic boundary to a unit disk have an intimate relation to the dispersionless 2D Toda integrable hierarchy. The maps are determined by a particular solution to the hierarchy…

High Energy Physics - Theory · Physics 2009-10-31 P. B. Wiegmann , A. Zabrodin

We consider integrals of tau functions of Zakharov-Shabat systems whose higher times are related to the eigenvalues of products of random matrices. Apart of random matrices there is the set of $n$ pairs of given matrices which play the role…

Exactly Solvable and Integrable Systems · Physics 2019-11-07 S. M. Natanzon , A. Yu. Orlov

We prove that the isomonodromic tau function on a torus with Fuchsian singularities and generic monodromies in $GL(N,\mathbb{C})$ can be written in terms of a Fredholm determinant of Cauchy-Plemelj operators. We further show that the minor…

Mathematical Physics · Physics 2023-03-17 Fabrizio Del Monte , Harini Desiraju , Pavlo Gavrylenko

We compute the equivariant K-theoretic Donaldson--Thomas invariants of $[\mathbb{C}^2/\mu_r]\times \mathbb{C}$ using factorization and rigidity techniques. For this, we develop a generalization of Okounkov's factorization technique that…

Algebraic Geometry · Mathematics 2024-04-25 Felix Thimm

We show that a 2-parameter family of $\tau$-functions for the first Painlev\'e equation can be constructed by the discrete Fourier transform of the topological recursion partition function for a family of elliptic curves. We also perform an…

Mathematical Physics · Physics 2020-06-24 Kohei Iwaki

We construct a new class of operators that act on symmetric functions with two deformation parameters $q$ and $t$. Our combinatorial construction associates each operator with a specific lattice path, whose steps alternate between moving up…

Combinatorics · Mathematics 2025-06-09 Houcine Ben Dali , Valentin Bonzom , Maciej Dołęga

This is a research announcement concerning a series of constructions obtained by applying the "doubling method" from the theory of automorphic forms to covering groups. Using these constructions, we obtain partial tensor product L-functions…

Number Theory · Mathematics 2016-02-01 Yuanqing Cai , Solomon Friedberg , David Ginzburg , Eyal Kaplan

We define dual equivalence for any collection of combinatorial objects endowed with a descent set, and we show that giving a dual equivalence establishes the symmetry and Schur positivity of the quasi-symmetric generating function. We give…

Combinatorics · Mathematics 2015-06-15 Sami H. Assaf

The core of this article is a general theorem with a large number of specializations. Given a manifold $N$ and a finite number of one-parameter groups of point transformations on $N$ with generators $Y, X_{(1)}, \cdots, X_{(d)} $, we…

funct-an · Mathematics 2016-08-31 Pierre Cartier , Cécile DeWitt-Morette

It is shown that the Topological Massive and ``Self-dual'' theories, which are known to provide locally equivalent descriptions of spin 1 theories in 2+1 dimensions, have different global properties when formulated over topologically…

High Energy Physics - Theory · Physics 2014-11-18 P. J. Arias , A. Restuccia

We define two tau functions, $\tau$ and $\hat{\tau}$ , on moduli spaces of spectral covers of $GL(n)$ Hitchin's systems. Analyzing the properties of $\tau$, we express the divisor class of the universal Hitchin's discriminant in terms of…

Mathematical Physics · Physics 2020-01-22 Dmitry Korotkin , Peter Zograf

Pandharipande-Thomas theory and Donaldson-Thomas theory (PT and DT) are two branches of enumerative geometry in which particular generating functions arise that count plane-partition-like objects. That these generating functions differ only…

Combinatorics · Mathematics 2024-12-10 Cruz Godar , Benjamin Young

We construct coordinates on conjugacy classes of traceless complex matrices with simple spectrum that diagonalize the non-periodic Toda vector field. By this we mean that the coordinates, defined on an open and dense neighborhood of any…

Differential Geometry · Mathematics 2025-09-18 David Martínez Torres , Carlos Tomei

In the context of generating functions for $P$-partitions, we revisit three flavors of quasisymmetric functions: Gessel's quasisymmetric functions, Chow's type B quasisymmetric functions, and Poirier's signed quasisymmetric functions. In…

Combinatorics · Mathematics 2007-05-23 T. Kyle Petersen

We use the plethystic programme and the Molien-Weyl fomula to compute generating functions, or Hilbert Series, which count gauge invariant operators in SQCD with the SO and Sp gauge groups. The character expansion technique indicates how…

High Energy Physics - Theory · Physics 2014-11-18 Amihay Hanany , Noppadol Mekareeya

It is well-known that the partition function of the unitary ensembles of random matrices is given by a tau-function of the Toda lattice hierarchy and those of the orthogonal and symplectic ensembles are tau-functions of the Pfaff lattice…

Exactly Solvable and Integrable Systems · Physics 2015-05-13 Yuji Kodama , Virgil U. Pierce

We consider the topological string partition function, including the Nekrasov deformation, for type IIB geometries with an A_{n-1} singularity over a Riemann surface. These models realize the N=2 SU(n) superconformal gauge systems recently…

High Energy Physics - Theory · Physics 2009-09-15 Robbert Dijkgraaf , Cumrun Vafa

We investigate S^3/Z_n partition function of N = 2 supersymmetric gauge theories. A gauge theory on the orbifold has degenerate vacua specified by the holonomy. The partition function is obtained by summing up the contributions of saddle…

High Energy Physics - Theory · Physics 2015-06-11 Yosuke Imamura , Daisuke Yokoyama

We present new methods for the study of a class of generating functions introduced by the second author which carry some formal similarities with the Hurwitz zeta function. We prove functional identities which establish an explicit…

Number Theory · Mathematics 2016-01-18 Federico Pellarin , Rudolph Perkins

It was known that one-point functions in the ABJM matrix model (obtained by applying the localization technique to one-point functions of the half-BPS Wilson loop operator in the ABJM theory) satisfy the Jacobi-Trudi formula, which strongly…

High Energy Physics - Theory · Physics 2019-05-01 Tomohiro Furukawa , Sanefumi Moriyama
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