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Related papers: Cellular Structure of Wreath Product Algebras

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In the first part of this series, the authors introduced the quantum wreath product, providing a unified framework that encompasses numerous results previously addressed only through case-by-case analysis. This paper shifts focus to the…

Representation Theory · Mathematics 2026-05-27 Chun-Ju Lai , Daniel K. Nakano , Ziqing Xiang

This paper is devoted to constructing simple modules of the planar Galilean conformal algebra. We study the tensor products of finitely many simple $\mathcal{U}(\mathcal{H})$-free modules with an arbitrary simple restricted module, where…

Representation Theory · Mathematics 2025-07-30 Dashu Xu

This paper reports key advances in the study of the representation theory of the symplectic blob algebra. For suitable specialisations of the parameters we construct four large families of homomorphisms between cell modules. We hence find a…

Representation Theory · Mathematics 2017-07-21 Richard Green , Paul Martin , Alison Parker

In "Hopf algebra of the planar binary trees", Adv. Math. 139 (1998), no. 2, 293--309, we constructed by induction a graded associative product on the vector space generated by the planar binary trees (resp. the permutations). In the present…

Combinatorics · Mathematics 2016-09-07 Jean-Louis Loday , Maria O. Ronco

We introduce a notion of partition wreath product of a finite group by a partition quantum group, a construction motivated on the one hand by classical wreath products and on the other hand by the free wreath product of J. Bichon. We…

Quantum Algebra · Mathematics 2015-11-16 Amaury Freslon , Adam Skalski

In this paper we study the classifying spaces of graph products of simplicial groups and connected Hopf algebras over a field, and show that they can be uniformly treated under the framework of polyhedral products. It turns out that these…

Algebraic Topology · Mathematics 2023-11-15 Li Cai

Coset geometries are incidence geometries constructed from a group $G$ and a system of subgroups $(G_i)_{i \in I}$ of subgroups of $G$. For any algebraic group operation, it is then natural to wonder whether it can be extended to the…

Group Theory · Mathematics 2026-05-29 Claudio Alexandre Piedade , Philippe Tranchida

We construct, using finitely many generating cell and relations, props in the category of CW-complexes with the property that their associated operads are models for the $E_\infty$-operad. We use one of these to construct a cellular…

Algebraic Topology · Mathematics 2020-12-21 Anibal M. Medina-Mardones

We describe a completely algebraic axiom system for intertwining operators of vertex algebra modules, using algebraic flat connections, thus formulating the concept of a {\em tree algebra}. Using the Riemann-Hilbert correspondence, we…

Quantum Algebra · Mathematics 2011-02-11 Igor Kriz , Yang Xiu

This paper presents a detailed symbolic approach to the study of self-similar tilings. It uses properties of addresses associated with graph-directed iterated function systems to establish conjugacy properties of tiling spaces. Tiles may be…

Dynamical Systems · Mathematics 2020-11-30 Michael F. Barnsley , Louisa F. Barnsley , Andrew Vince

Using a group-theoretic approach, a method for determining the equivalence classes (also called orbits) of the set of rules of one-dimensional cellular automata induced by the symmetry operations of reflection and permutation and their…

Cellular Automata and Lattice Gases · Physics 2025-10-07 Martin Schaller , Karl Svozil

We generalize cellular sheaf Laplacians on an ordered finite abstract simplicial complex to the set of simplices of a symmetric simplicial set. We construct a functor from the category of hypergraphs to the category of finite symmetric…

Algebraic Topology · Mathematics 2024-11-14 Seongjin Choi , Junyeong Park

We express a family of basic cellular integrals over moduli spaces of curves explicitly in terms of multiple zeta values, answering a question of Brown. Moreover, we study a priori the weights appearing in these integrals and find a…

Number Theory · Mathematics 2026-03-20 Riccardo Tosi

We show that chiral symmetry can be broken spontaneously in one-component systems with isotropic interactions, i.e. many-particle systems having maximal a priori symmetry. This is achieved by designing isotropic potentials that lead to…

Materials Science · Physics 2012-05-16 Erik Edlund , Oskar Lindgren , Martin Nilsson Jacobi

We investigate the distribution of cells by dimension in cylindrical algebraic decompositions (CADs). We find that they follow a standard distribution which seems largely independent of the underlying problem or CAD algorithm used. Rather,…

Symbolic Computation · Computer Science 2015-02-13 David Wilson , Matthew England , Russell Bradford , James H. Davenport

The restriction of a (dual) Specht module to a smaller symmetric group has a filtration by (dual) Specht modules of this smaller group. In the cellular structure of the group algebra of the symmetric group, the cell modules are exactly the…

Representation Theory · Mathematics 2019-04-24 Inga Paul

We develop a theory of semidirect products of partial groups and localities. Our concepts generalize the notions of direct products of partial groups and localities, and of semidirect products of groups.

Group Theory · Mathematics 2019-05-10 Valentina Grazian , Ellen Henke

We describe an inner product on the diagrams on which the Temperley-Lieb algebra can be represented. We exhibit several constructions which are in natural combinatorial bijection with these diagrams, which are generalizations of various…

Combinatorics · Mathematics 2015-03-17 C. Emily I. Redelmeier

A permutation class which is closed under pattern involvement may be described in terms of its basis. The wreath product construction X \wr Y of two permutation classes X and Y is also closed, and we investigate classes Y with the property…

Combinatorics · Mathematics 2007-05-23 Robert Brignall

For an arbitrary commutative ring k and t in k, we construct a 2-functor S_t which sends a tensor category to a new tensor category. By applying it to the representation category of a bialgebra we obtain a family of categories which…

Representation Theory · Mathematics 2012-06-07 Masaki Mori