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Let g be the Lie superalgebra p(3) of rank 2 over an algebraically closed field K of characteristic p > 3. We classify all irreducible modules of g, and give the character formulae for irreducible modules.

Representation Theory · Mathematics 2026-01-23 Ye Ren

Suppose $g=g_0+g_1$ is a finite-dimensional restricted Lie superalgebra over an algebraically closed field $k$ of characteristic $p>2$. In this article, we propose a conjecture for maximal dimensions of irreducible modules over the…

Representation Theory · Mathematics 2024-10-10 Bin Shu

The classification of finite-dimensional pointed Hopf algebras with group S_3 was finished in "The Nichols algebra of a semisimple Yetter-Drinfeld module", arXiv:0803.2430v1 [math.QA], by Andruskiewitsch, Heckenberger and Schneider: there…

Quantum Algebra · Mathematics 2010-11-09 Agustin Garcia Iglesias

In this paper we review and streamline some results of Kirillov, Olshanski and Pickrell on unitary representations of the unitary group $\U(\cH)$ of a real, complex or quaternionic separable Hilbert space and the subgroup $\U_\infty(\cH)$,…

Representation Theory · Mathematics 2013-08-08 Karl-Hermann Neeb

We study the relationship between $n$-cluster tilting modules over $n$ representation finite algebras and the Euler forms. We show that the dimension vectors of cluster-indecomposable modules give the roots of the Euler form. Moreover, we…

Representation Theory · Mathematics 2014-02-26 Yuya Mizuno

In this paper we show that the projective cover of the trivial irreducible module of a finite-dimensional solvable restricted Lie algebra is induced from the one-dimensional trivial module of a maximal torus. As a consequence, we obtain…

Representation Theory · Mathematics 2018-02-21 Jörg Feldvoss , Salvatore Siciliano , Thomas Weigel

We show that Mildenhall's theorem implies that the indecomposable higher Chow group of a self-product of an elliptic curve over the complex number field is infinite dimensional, if the elliptic curve is modular and defined over rational…

Algebraic Geometry · Mathematics 2007-05-23 Morihiko Saito

In this paper it is proved that an irreducible weight module with finite-dimensional weight spaces over the Schr\"{o}dinger-Virasoro algebras is a highest/lowest weight module or a uniformly bounded module. Furthermore, indecomposable…

Rings and Algebras · Mathematics 2009-11-13 Junbo Li , Yucai Su

In a series of papers, we have shown that from the representatio theory of a compact groupoid one can reconstruct the groupoid using the procedure similar to the Tannaka-Krein duality for compact groups. In this part we study continuous…

Operator Algebras · Mathematics 2007-05-23 Massoud Amini

Let $F$ be a locally compact non-archimedean field of residue characteristic $p$, $\textbf{G}$ a connected reductive group over $F$, and $R$ a field of characteristic $p$. When $R$ is algebraically closed, the irreducible admissible…

Number Theory · Mathematics 2017-12-22 G. Henniart , M. -F. Vignéras

In the present paper, we introduce a class of infinite Lie conformal superalgebras $\mathcal{S}(p)$, which are closely related to Lie conformal algebras of extended Block type defined in \cite{CHS}. Then all finite non-trivial irreducible…

Representation Theory · Mathematics 2021-05-19 Haibo Chen , Yanyong Hong , Yucai Su

The aim of this note is to provide a self-contained classification of the irreducible representations of generalised Kac--Paljutkin Hopf algebras, recently introduced by the second author.

Quantum Algebra · Mathematics 2025-11-17 Sebastian Halbig , Christian Lomp

Support $\tau$-tilting modules correspond to some classes of categorical objects bijectively, such as two-term tilting complexes for any finite dimensional symmetric algebra. This fact motivates us to classify support $\tau$-tilting modules…

Representation Theory · Mathematics 2020-04-28 Ryotaro Koshio , Yuta Kozakai

We classify finite-dimensional Nichols algebras of Yetter-Drinfeld modules with indecomposable support over finite solvable groups in characteristic 0, using a variety of methods including reduction to positive characteristic. As a…

Quantum Algebra · Mathematics 2024-11-05 N. Andruskiewitsch , I. Heckenberger , L. Vendramin

We give a characterization of connected solvable groups in terms of the existence of representations with certain geometric properties. The existence of such representations for the group of upper triangular matrices played an important…

Algebraic Geometry · Mathematics 2016-09-07 Dan Edidin , William Graham

In this paper, we classify irreducible modules for loop extended Witt algebras with finite dimensional weight spaces. They turn out to be either modules with uniformly bounded weight spaces or highest weight modules. We further prove that…

Representation Theory · Mathematics 2022-12-12 Sachin S. Sharma , Priyanshu Chakraborty , Ritesh Kumar Pandey , S. Eswara Rao

Fix a manifold M, and let V be an infinite dimensional Lie algebra of vector fields on M. Assume that V contains a finite dimensional semisimple maximal subalgebra A, the projective or conformal subalgebra. A projective or conformal…

Representation Theory · Mathematics 2015-12-17 Charles H. Conley

The idea that the cohomology of finite groups might be fruitfully approached via the cohomology of ambient semisimple algebraic groups was first shown to be viable in the papers [CPS75] and [CPSvdK77]. The second paper introduced, through a…

Representation Theory · Mathematics 2012-05-08 Brian J. Parshall , Leonard L. Scott , David I. Stewart

We initiate the study of some pro-p-groups arising from infinite-dimensional Lie theory. These groups are completions of some subgroups of incomplete Kac-Moody groups over finite fields, with respect to various completions of algebraic or…

Group Theory · Mathematics 2013-02-19 Inna Capdeboscq , Bertrand Remy

Let F be a locally compact non-archimedean field, p its residue characteristic, and G a connected reductive group over F. Let C an algebraically closed field of characteristic p. We give a complete classification of irreducible admissible…

Number Theory · Mathematics 2017-02-08 Noriyuki Abe , Guy Henniart , Florian Herzig , Marie-France Vigneras
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