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The symmetry group structures of two dimensional coupled nonlinear Shr\"{o}dinger equations are considered. We first show that the equations admit infinite dimensional symmetry algebra as well as the corresponding symmetry group depending…

Mathematical Physics · Physics 2020-02-13 YueXing Bai , Temuer Chaolu , Yan Li

For every odd prime $p$, we exhibit families of irreducible Artin representations $\tau$ with the property that for every elliptic curve $E$ the order of the zero of the twisted $L$-function $L(E,\tau,s)$ at $s\!=\!1$ must be a…

Number Theory · Mathematics 2018-09-05 Matthew Bisatt , Vladimir Dokchitser

We use a unified elementary approach to prove the second part of classical, mixed, super, and mixed super Schur-Weyl dualities for general linear groups and supergroups over an infinite ground field of arbitrary characteristic. These…

Representation Theory · Mathematics 2024-04-30 František Marko

We extend the classical Schur-Weyl duality between representations of the groups $SL(n,\C)$ and $\sN$ to the case of $SL(n,\C)$ and the infinite symmetric group $\sinf$. Our construction is based on a "dynamic," or inductive, scheme of…

Representation Theory · Mathematics 2012-09-24 N. V. Tsilevich , A. Vershik

We introduce Schur multiple zeta functions which interpolate both the multiple zeta and multiple zeta-star functions of the Euler-Zagier type combinatorially. We first study their basic properties including a region of absolute convergence…

Number Theory · Mathematics 2018-04-26 Maki Nakasuji , Ouamporn Phuksuwan , Yoshinori Yamasaki

We show that a specialization in Weyl character formula can be carried out in such a way that its right-hand side becomes simply a Schur Function. For this, we need the use of fundamental weights. In the generic definition, an Elementary…

Mathematical Physics · Physics 2007-05-23 Hasan R. Karadayi

We study representations of inner functions on the bidisc from a fractional linear transformation point of view, and provide sufficient conditions, in terms of colligation matrices, for the existence of two-variable inner functions. Here…

Functional Analysis · Mathematics 2022-02-08 Ramlal Debnath , Jaydeb Sarkar

This paper is associated with Nevanlinna class, Dirichlet series and Szeg\"o's problem in infinitely many variables. As we will see, there is a natural connection between these topics. The paper first introduces the Nevanlinna class and the…

Complex Variables · Mathematics 2022-06-02 Kunyu Guo , Jiaqi Ni , Qi Zhou

In this paper we investigate the properties of the Euler functions. By using the Fourier transform for the Euler function, we derive the interesting formula related to the infinite series. Finally we give some interesting identities between…

Number Theory · Mathematics 2008-08-14 Taekyun Kim

We begin the study of the representation theory of the infinite Temperley-Lieb algebra. We fully classify its finite dimensional representations, then introduce infinite link state representations and classify when they are irreducible or…

Quantum Algebra · Mathematics 2022-12-23 Stephen T. Moore

A set of functions is defined which is indexed by a positive integer $n$ and partitions of integers. The case $n=1$ reproduces the standard Schur polynomials. These functions are seen to arise naturally as a determinant of an action on the…

Algebraic Geometry · Mathematics 2007-05-23 Alex Kasman

We extend to infinite dimensional separable Hilbert spaces the Schur convexity property of eigenvalues of a symmetric matrix with real entries. Our framework includes both the case of linear, selfadjoint, compact operators, and that of…

Analysis of PDEs · Mathematics 2007-05-23 Claude Vallee , Vicentiu Radulescu

We introduce new notions in elliptic Schubert calculus: the (twisted) Borisov-Libgober classes of Schubert varieties in general homogeneous spaces G/P. While these classes do not depend on any choice, they depend on a set of new variables.…

Algebraic Geometry · Mathematics 2019-10-08 Shrawan Kumar , Richárd Rimányi , Andrzej Weber

We obtain a precise relation between the Chern-Schwartz-MacPherson class of a subvariety of projective space and the Euler characteristics of its general linear sections. In the case of a hypersurface, this leads to simple proofs of…

Algebraic Geometry · Mathematics 2013-07-04 Paolo Aluffi

In the study of Dirichlet series with arithmetic significance there has appeared (through the study of known examples) certain expectations, namely (i) if a functional equation and Euler product exists, then it is likely that a type of…

Number Theory · Mathematics 2024-10-10 J. Brian Conrey , Amit Ghosh

In this note, we discuss the flexibility of Schubert classes in homogeneous varieties. We give several constructions for representing multiples of a Schubert class by irreducible subvarieties. We sharpen [R, Theorem 3.1] by proving that…

Algebraic Geometry · Mathematics 2013-03-04 Izzet Coskun , Colleen Robles

We determined the $\tau$-tilting finiteness of Schur algebras over an algebraically closed field of arbitrary characteristic, except for a few small cases.

Representation Theory · Mathematics 2021-12-23 Qi Wang

We develop a functorial theory of spinor and oscillator representations parallel to the theory of Schur functors for general linear groups. This continues our work on developing orthogonal and symplectic analogues of Schur functors. As…

Representation Theory · Mathematics 2017-06-15 Steven V Sam , Andrew Snowden

We investigate a generalization of the classical notion of a Schur functor associated to a ribbon diagram. These functors are defined with respect to an arbitrary algebra, and in the case that the underlying algebra is the…

Commutative Algebra · Mathematics 2025-03-26 Keller VandeBogert

We introduce partially defined Schur multipliers and obtain necessary and sufficient conditions for the existence of extensions to fully defined positive Schur multipliers, in terms of operator systems canonically associated with their…

Operator Algebras · Mathematics 2018-08-29 Rupert H. Levene , Ying-Fen Lin , Ivan G. Todorov