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We consider irreducible representations of finite quandles over $\mathbb{C}$. For $Q$ a finite quandle whose inner automorphism group $Inn(Q)$ have trivial Schur multipliers, we prove that the irreducible representations of $Q$ can be…

Representation Theory · Mathematics 2026-04-15 Mohamad Maassarani

We parameterize the finite-dimensional irreducible representations of a class of pointed Hopf algebras over an algebraically closed field of characteristic zero by dominant characters. The Hopf algebras we are considering arise in the work…

Quantum Algebra · Mathematics 2007-05-23 David E. Radford , Hans-Jürgen Schneider

Twisted loop algebras of the second kind are infinite-dimensional Lie algebras that are constructed from a semisimple Lie algebra and an automorphism on it of order at most $2$. They are examples of equivariant map algebras. The…

Representation Theory · Mathematics 2025-06-04 Hideya Watanabe

We compare the dimensions of the irreducible Sp(2g,K)-modules over a field K of characteristic p constructed by Gow with the dimensions of the irreducible Sp(2g,F_p)-modules that appear in the first approximation to representations of…

Representation Theory · Mathematics 2015-10-27 Patrick M. Gilmer , Gregor Masbaum

In the present paper we construct all typical finite-dimensional representations of the quantum Lie superalgebra $U_{q}[gl(2/2)]$ at generic deformation parameter $q$. As in the non-deformed case the finite-dimensional…

High Energy Physics - Theory · Physics 2009-10-22 Nguyen Anh Ky

It is proved that certain types of modular cusp forms generate irreducible automorphic representation of the underlying algebraic group. Analogous archimedean and non-archimedean local statements are also given.

Representation Theory · Mathematics 2011-05-27 Hiro-aki Narita , Ameya Pitale , Ralf Schmidt

For each fixed n>=2 we show how the Nielsen-Thurston classification of mapping classes for a closed surface of genus g>=2 is determined by the sequence of quantum SU(n) representations, when one considers all levels. That this is the case…

Quantum Algebra · Mathematics 2007-05-23 Jorgen Ellegaard Andersen

Suppose that $\mathbf{G}$ is a connected reductive group over a finite extension $F/\mathbb{Q}_p$, and that $C$ is a field of characteristic $p$. We prove that the group $\mathbf{G}(F)$ admits an irreducible admissible supercuspidal, or…

Representation Theory · Mathematics 2020-05-05 Florian Herzig , Karol Koziol , Marie-France Vignéras

We give an infinite presentation for the mapping class group of a non-orientable surface with boundary components. The presentation is a generalization of the presentation given by the second author [15].

Geometric Topology · Mathematics 2016-10-18 Ryoma Kobayashi , Genki Omori

We show that finite quasisimple groups of Lie type in characteristic $p$ with an irreducible representation of prime degree $r$ over a finite field of characteristic $p$ have orders bounded above by a function of $r$, independent of $p$. We…

Group Theory · Mathematics 2026-01-06 D. L. Flannery , A. E. Zalesski

In this survey, we shall be concerned with the category of finite-dimensional representations of the untwisted quantum affine algebras when the quantum parameter q is not a root of unity. We review the foundational results of the subject,…

Quantum Algebra · Mathematics 2010-04-07 Vyjayanthi Chari , David Hernandez

We use quantum invariants to define an analytic family of representations for the mapping class group of a punctured surface. The representations depend on a complex number A with |A| <= 1 and act on an infinite-dimensional Hilbert space.…

Geometric Topology · Mathematics 2014-11-11 Francesco Costantino , Bruno Martelli

For a root of unity $\zeta$ of odd prime order, we restrict coefficients of non-semisimple quantum representations of mapping class groups associated with the small quantum group $\mathfrak{u}_\zeta \mathfrak{sl}_2$ from $\mathbb{Q}(\zeta)$…

Geometric Topology · Mathematics 2024-07-31 Marco De Renzi , Jules Martel

This paper is a short account of the construction of a new class of the infinite-dimensional representations of the quantum groups. The examples include finite-dimensional quantum groups $U_q(\mathfrak{g})$, Yangian $Y(\mathfrak{g})$ and…

Quantum Algebra · Mathematics 2016-09-07 A. Gerasimov , S. Kharchev , D. Lebedev , S. Oblezin

In this paper we show that the reducibility structure of several covers of sofic shifts is a flow invariant. In addition, we prove that for an irreducible subshift of almost finite type the left Krieger cover and the past set cover are…

Dynamical Systems · Mathematics 2013-01-08 Teresa Bates , Soren Eilers , David Pask

We give new explicit formulas for the representations of the mapping class group of a genus one surface with one boundary component which arise from Integral TQFT. Our formulas allow one to compute the h-adic expansion of the TQFT-matrix…

Geometric Topology · Mathematics 2015-10-28 Patrick M. Gilmer , Gregor Masbaum

In this article, we obtain a complete list of inequivalent irreducible representations of the compact quantum group $U_q(2)$ for non-zero complex deformation parameters $q$, which are not roots of unity. The matrix coefficients of these…

Quantum Algebra · Mathematics 2026-01-19 Satyajit Guin , Bipul Saurabh

An analogue of Burnside's Lemma for 2-transitive groups is shown to hold for a class of topological groups. If the group is compact the representation is finite and splits into an irreducible and the constant functions. If both the group…

Representation Theory · Mathematics 2018-11-26 Robert A. Bekes

Given a quaternionic form G of a p-adic classical group (p odd) we classify all cuspidal irreducible representations of G with coefficients in an algebraically closed field of characteristic different from p. We prove two theorems: At…

Representation Theory · Mathematics 2022-11-09 Daniel Skodlerack

We discuss irreducible highest weight representations of the sl(2) loop algebra and reducible indecomposable ones in association with the sl(2) loop algebra symmetry of the six-vertex model at roots of unity. We formulate an elementary…

Statistical Mechanics · Physics 2009-11-11 Tetsuo Deguchi