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We propose a unified method to construct multicyclic codes of arbitrary dimension $r$ over $\mathbb{F}_q$. The approach relies on $r$-dimensional primitive idempotents defined as tensor products of univariate ones, combined with…

Commutative Algebra · Mathematics 2026-03-10 Jean Charles Ramanandraibe , Ramamonjy Andriamifidisoa

Let $G$ be a finite group and $p$ be a prime. We study the kernel of the map, between the Burnside ring of $G$ and the Grothendieck ring of $\mathbb{F}_p[G]$-modules, taking a $G$-set to its associated permutation module. We are able, for…

Representation Theory · Mathematics 2018-04-24 Matthew Spencer

Every atomic JBW-algebra is known to be a direct sum of JBW-algebra factors of type I. Extending Kadison's anti-lattice theorem, we show that each of these factors is a disjointness free anti-lattice. We characterise disjointness, bands,…

Functional Analysis · Mathematics 2023-05-31 Onno van Gaans , Anke Kalauch , Mark Roelands

We prove that the class of Brauer graph algebras coincides with the class of indecomposable idempotent algebras of biserial weighted surface algebras. These algebras are associated to triangulated surfaces with arbitrarily oriented…

Representation Theory · Mathematics 2018-08-23 Karin Erdmann , Andrzej Skowroński

In this project, we will study the Brauer group that was first defined by R. Brauer. The elements of the Brauer group are the equivalence classes of finite dimensional central simple algebra. Therefore understanding the structure of the…

Rings and Algebras · Mathematics 2019-11-07 Haiyu Chen

A braided bialgebra is called primitively generated if it is generated as an algebra by its space of primitive elements. We prove that any primitively generated braided bialgebra is isomorphic to the universal enveloping algebra of its…

Quantum Algebra · Mathematics 2010-08-27 Alessandro Ardizzoni

We equip the space of lattice cones with a coproduct which makes it a connected cograded colagebra. The exponential sum and exponential integral on lattice cones can be viewed as linear maps on this space with values in the space of…

Mathematical Physics · Physics 2017-03-01 Li Guo , Sylvie Paycha , Bin Zhang

We present an algorithm to compute the Brauer group of involution surface bundles over rational surfaces.

Algebraic Geometry · Mathematics 2018-09-17 Andrew Kresch , Yuri Tschinkel

A classic result of representation theory is Brauer's construction of a diagrammatical (geometrical) algebra whose matrix representation is a certain given matrix algebra, which is the commutating algebra of the enveloping algebra of the…

Representation Theory · Mathematics 2007-05-23 K. Dosen , Z. Petric

Artin's braid group $B_n$ is generated by $\sigma_1, \dots, \sigma_{n-1}$ subject to the relations \[ \sigma_i \sigma_{i+1} \sigma_i = \sigma_{i+1} \sigma_i \sigma_{i+1}, \quad \sigma_i\sigma_j = \sigma_j \sigma_i \text{ if } |i-j|>1. \]…

Representation Theory · Mathematics 2021-07-20 Stephen Doty , Anthony Giaquinto

We prove two isomorphisms of categories involving Brauer pairs on $p$-permutation $N$-interior $G$-algebras.

Group Theory · Mathematics 2023-02-27 Tiberiu Coconet , Constantin-Cosmin Todea

In this paper we show how we can compute in a deterministic way the decomposition of a multivariate rational function with a recombination strategy. The key point of our recombination strategy is the used of Darboux polynomials. We study…

Symbolic Computation · Computer Science 2014-02-26 Guillaume Chèze

This paper introduces the notion of Brauer-friendly modules, a generalisation of endo-p-permutation modules. A module over a block algebra OGe is said to be Brauer-friendly if it is a direct sum of indecomposable modules with compatible…

Representation Theory · Mathematics 2013-07-16 Erwan Biland

The main result is that the category of ordinary modules of an affine vertex operator algebra of a simply laced Lie algebra at admissible level is rigid and thus a braided fusion category. If the level satisfies a certain coprime property…

Quantum Algebra · Mathematics 2018-07-03 Thomas Creutzig

The Matrix Bochner Problem aims to classify weight matrices $W$ such that the algebra $\mathcal D(W)$, of all differential operators that have a sequence of matrix-valued orthogonal polynomials for $W$ as eigenfunctions, contains a…

Classical Analysis and ODEs · Mathematics 2025-03-18 Ignacio Bono Parisi , Inés Pacharoni

Let $V=\C^n$ be endowed with an orthogonal form and $G=\Or(V)$ be the corresponding orthogonal group. Brauer showed in 1937 that there is a surjective homomorphism $\nu:B_r(n)\to\End_G(V^{\otimes r})$, where $B_r(n)$ is the $r$-string…

Group Theory · Mathematics 2011-02-17 Gustav Lehrer , Ruibin Zhang

A necessary and sufficient condition is provided for the solvability of a binomial congruence with a composite modulus, circumventing its prime factorization. This is a generalization of Euler's Criterion through that of Euler's Theorem,…

Number Theory · Mathematics 2015-07-02 József Vass

For associative algebras in many different categories, it is possible to develop the machinery of Gr\"obner bases. A Gr\"obner basis of defining relations for an algebra of such a category provides a "monomial replacement" of this algebra.…

K-Theory and Homology · Mathematics 2011-05-12 Vladimir Dotsenko , Anton Khoroshkin

Let the formal power series f in d variables with coefficients in an arbitrary field be a symmetric function decomposed as a series of Schur functions, and let f be a rational function whose denominator is a product of binomials of the form…

Rings and Algebras · Mathematics 2012-01-24 Francesca Benanti , Silvia Boumova , Vesselin Drensky , Georgi K. Genov , Plamen Koev

We describe the primitive central idempotents of the group algebra over a number field of finite monomial groups. We give also a description of the Wedderburn decomposition of the group algebra over a number field for finite strongly…

Representation Theory · Mathematics 2014-11-24 Gabriela Olteanu , Inneke Van Gelder