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It has been proved recently by Moreto and Craven that the order of a finite group is bounded in terms of the largest multiplicity of its irreducible character degrees. A conjugacy class version of this result was proved for solvable groups…

Group Theory · Mathematics 2011-02-22 Hung Ngoc Nguyen

We present and prove closed form expressions for some families of binomial determinants with signed Kronecker deltas that are located along an arbitrary diagonal in the corresponding matrix. They count cyclically symmetric rhombus tilings…

Combinatorics · Mathematics 2021-09-22 Hao Du , Christoph Koutschan , Thotsaporn Thanatipanonda , Elaine Wong

We consider first-order definability and decidability questions over rings of integers of algebraic extensions of $\Q$, paying attention to the uniformity of definitions. The uniformity follows from the simplicity of our first-order…

Number Theory · Mathematics 2024-06-05 Barry Mazur , Karl Rubin , Alexandra Shlapentokh

The convolution of indicators of two conjugacy classes on the symmetric group S_q is usually a complicated linear combination of indicators of many conjugacy classes. Similarly, a product of the moments of the Jucys--Murphy element involves…

Combinatorics · Mathematics 2007-05-23 Piotr Sniady

In math.CO/0109093 the author obtained a formula for the value of an irreducible symmetric group character indexed by a partition of rectangular shape. In the present paper this formula is (conjecturally) generalized to arbitrary shapes.

Combinatorics · Mathematics 2007-05-23 Richard P. Stanley

In this article, I introduce a group-theoretical method to prove positivity of certain linear combinations (with coefficients generally lying in $\mathbb{C}$) of exponential functions under a set of semidefinite linear constraints. The…

Group Theory · Mathematics 2021-12-06 Robert Lin

Kazhdan-Lusztig polynomials are important and mysterious objects in representation theory. Here we present a new formula for their computation for symmetric groups based on the Bruhat graph. Our approach suggests a solution to the…

Representation Theory · Mathematics 2023-09-06 Charles Blundell , Lars Buesing , Alex Davies , Petar Veličković , Geordie Williamson

We prove an interesting identity for the sum of determinants, which is a generalization of the sum of a geometric progression. The proof is quite long and a number of other identities are proved along the way. Some of the more elementary…

Combinatorics · Mathematics 2024-08-28 T. C. Dorlas

We establish asymptotic formulas for the determinants of finite Toeplitz + Hankel matrices of size N, as N goes to infinity for singular generating functions defined on the unit circle in the special case where the generating function is…

Functional Analysis · Mathematics 2008-04-21 Estelle L. Basor , Torsten Ehrhardt

We generalize linear superalgebra to higher gradings and commutation factors, given by arbitrary abelian groups and bicharacters. Our central tool is an extension, to monoidal categories of modules, of the Nekludova-Scheunert faithful…

Rings and Algebras · Mathematics 2014-03-31 Tiffany Covolo , Jean-Philippe Michel

In 1954 B. H. Neumann discovered that if G is a group in which all conjugacy classes are finite with bounded size, then the derived group G' is finite. Later (in 1957) Wiegold found an explicit bound for the order of G'. We study groups in…

Group Theory · Mathematics 2018-02-16 Glaucia Dierings , Pavel Shumyatsky

We study the action of a differential operator on Schubert polynomials. Using this action, we first give a short new proof of an identity of I. Macdonald (1991). We then prove a determinant conjecture of R. Stanley (2017). This conjecture…

Combinatorics · Mathematics 2022-03-25 Zachary Hamaker , Oliver Pechenik , David E Speyer , Anna Weigandt

We present a simple and accessible method which uses contour integration methods to derive formulae for functional determinants. To make the presentation as clear as possible, the general idea is first illustrated on the simplest case: a…

Mathematical Physics · Physics 2008-11-26 Klaus Kirsten , Alan McKane

In this paper, we present a new formula of the determinant tensor $det_n$ for $n \times n$ matrices. In \cite{kim2023newdet4}, Kim, Ju, and Kim found a new formula of $4 \times 4$ determinant tensor $det_4$ which is available when the base…

Commutative Algebra · Mathematics 2023-03-15 Jeong-Hoon Ju , Taehyeong Kim , Yeongrak Kim

We extend Deligne's notion of determinant functor to tensor triangulated categories. Specifically, to account for the multiexact structure of the tensor, we define a determinant functor on the 2-multicategory of triangulated categories and…

Category Theory · Mathematics 2023-09-07 Ettore Aldrovandi , Cynthia Lester

The classical Selberg integral contains a power of the Vandermonde determinant. When that power is a square, it is easy to prove Selberg's identity by interpreting it as a determinant of one-variable integrals. We give similar proofs of…

Classical Analysis and ODEs · Mathematics 2018-11-28 Hjalmar Rosengren

We give the graded Cartan determinants of the symmetric groups. Based on it, we propose a gradation of Hill's conjecture which is equivalent to K\"ulshammer-Olsson-Robinson's conjecture on the generalized Cartan invariants of the symmetric…

Representation Theory · Mathematics 2012-05-02 Shunsuke Tsuchioka

In 2008, Lehner, Wettig, Guhr and Wei conjectured a power series identity and showed that it implied a determinantal formula for a Bessel-type integral over the unitary supergroup. The integral is the supersymmetric extension of Bessel-type…

Mathematical Physics · Physics 2019-03-27 Jimmy He

We define the combinatorial Dirichlet-to-Neumann operator and establish a gluing formula for determinants of discrete Laplacians using a combinatorial Gaussian quantum field theory. In case of a diagonal inner product on cochains we provide…

Mathematical Physics · Physics 2015-06-15 Nicolai Reshetikhin , Boris Vertman

Broline, Crowe and Isaacs have computed the determinant of a matrix associated to a Conway-Coxeter frieze pattern. We generalise their result to the corresponding frieze pattern of cluster variables arising from the Fomin-Zelevinsky cluster…

Combinatorics · Mathematics 2020-12-21 Karin Baur , Bethany Marsh