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We study the indecomposable summands of the permutation module obtained by inducing the trivial $\mathbb{F}(S_a\wr S_n)$-module to the full symmetric group $S_{an}$ for any field $\mathbb{F}$ of odd prime characteristic $p$ such that…

Representation Theory · Mathematics 2014-04-18 Eugenio Giannelli

We provide a classification of compact quantum groups, which can be obtained by the Woronowicz construction, when the arrays used in the twisted determinant condition are extensions of functions on permutations. General properties of such…

Operator Algebras · Mathematics 2020-12-07 Anna Kula

Simple-minded systems of objects in a stable module category are defined by common properties with the set of simple modules, whose images under stable equivalences do form simple-minded systems. Over a representation-finite self-injective…

Representation Theory · Mathematics 2013-05-14 Aaron Chan , Steffen Koenig , Yuming Liu

Let $p$ be an odd prime and $S$ a nonabelian finite $p$-group. In [9, 10], they proposed the following conjecture: if $\mathcal{F}$ be a transitive fusion system over a finite $p$-group $S$, then $S$ is either extraspecial of order $p^{3}$…

Group Theory · Mathematics 2024-12-05 Rui Gao , Heguo Liu , Xingzhong Xu , Sheng Yang

Given a saturated fusion system $\mathcal{F}$ over a finite $p$-group $S$, we provide criteria to determine when uniqueness of factorization into irreducible $\mathcal{F}$--invariant representations holds. We use them to prove uniqueness of…

Group Theory · Mathematics 2023-03-21 José Cantarero , Germán Combariza

We find and propose an explanation for a large variety of modularity-related symmetries in problems of 3-manifold topology and physics of 3d $\mathcal{N}=2$ theories where such structures a priori are not manifest. These modular structures…

High Energy Physics - Theory · Physics 2020-05-28 Miranda C. N. Cheng , Sungbong Chun , Francesca Ferrari , Sergei Gukov , Sarah M. Harrison

In this paper, we study the moduli space of quasi-polarized complex K3 surfaces of degree 6 and 8 via geometric invariant theory. The general members in such moduli spaces are complete intersections in projective spaces and we have natural…

Algebraic Geometry · Mathematics 2020-10-07 Zhiyuan Li , Zhiyu Tian

We present the first computation of the thermodynamic properties of the complex su(3) Toda theory. This is possible thanks to a new string hypothesis, which involves bound states that are non self-conjugate solutions of the Bethe equations.…

High Energy Physics - Theory · Physics 2009-10-31 H. Saleur , B. Wehefritz-Kaufmann

The aim of this paper is to generalise the notion of p-stability to fusion systems. We study the question how Qd(p) is involved in finite simple groups. We show that with a single exception a simple group involving Qd(p) has a subgroup…

Group Theory · Mathematics 2017-01-10 László Héthelyi , Magdolna Szőke , Alexandre Zalesski

In this paper, we study a family of fusion and modular systems realizing fusion categories Grothendieck equivalent to the representation category for $so(2p+1)_2$. These categories describe non-abelian anyons dubbed `metaplectic anyons'. We…

Quantum Algebra · Mathematics 2021-11-08 Eddy Ardonne , Peter E. Finch , Matthew Titsworth

In the first three sections, we develop some basic facts about hypergeometric sheaves on the multiplicative group ${\mathbb G}_m$ in characteristic $p >0$. In the fourth and fifth sections, we specialize to quite special classses of…

Number Theory · Mathematics 2019-02-19 Nicholas M. Katz , Antonio Rojas-León , Pham Huu Tiep

We investigate modular embeddings for semi-arithmetic Fuchsian groups. First we prove some purely algebro-geometric or even topological criteria for a regular map from a smooth complex curve to a quaternionic Shimura variety to be covered…

Algebraic Geometry · Mathematics 2015-09-04 Robert A. Kucharczyk

We determine the combinatorics of transitive module categories over the monoidal category of finite dimensional $\mathfrak{sl}_3$-modules which arise when acting by the latter monoidal category on arbitrary simple $\mathfrak{sl}_3$-modules.…

Representation Theory · Mathematics 2025-01-03 Volodymyr Mazorchuk , Xiaoyu Zhu

A theory of finite type invariants for arbitrary compact oriented 3-manifolds is proposed, and illustrated through many examples arising from both classical and quantum topology. The theory is seen to be highly non-trivial even for…

Geometric Topology · Mathematics 2015-06-26 Tim D. Cochran , Paul Melvin

We complete the classification of algebraic monoid structures on the affine 3-space. The result is based on a reduction of the general case to that of commutative monoids. We also study various algebraic properties of all monoids appearing…

Algebraic Geometry · Mathematics 2026-02-25 Ivan Arzhantsev , Roman Avdeev , Yulia Zaitseva

We introduce a strategy to study irreducible representations of automorphism groups of finite modules over local rings. We prove that these automorphism groups fit in a hierarchy that facilitates a stratification of their irreducible…

Representation Theory · Mathematics 2024-11-26 Tyrone Crisp , Ehud Meir , Uri Onn

Saturated fusion systems are categories modeling properties of conjugacy of p-subgroups in finite groups. It was shown by Chermak that they correspond nicely to group-like structures called localities. In this paper we start to explore how…

Group Theory · Mathematics 2026-04-01 Ellen Henke , Edoardo Salati

We define a family of groups that generalises Thompson's groups $T$ and $G$ and also those of Higman, Stein and Brin. For groups in this family we descrine centralisers of finite subgroups and show, that for a given finite subgroup $Q$,…

Group Theory · Mathematics 2013-09-10 Conchita Martinez-Perez , Brita E. A. Nucinkis

We answer a conjecture of Bauer, Catanese and Grunewald showing that all finite simple groups other than the alternating group of degree 5 admit unmixed Beauville structures. We also consider an analog of the result for simple algebraic…

Group Theory · Mathematics 2014-02-26 Robert Guralnick , Gunter Malle

We produce infinitely many local systems on (level covers of) the moduli space of smooth cubic threefolds, with algebraic monodromy group equal to the exceptional group $E_6$. These local systems arise in the middle cohomology of abelian…

Algebraic Geometry · Mathematics 2026-04-24 Thomas Krämer , Daniel Litt , Marco Maculan