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We determine the blocks of the walled Brauer algebra in characteristic zero. These can be described in terms of orbits of the action of a Weyl group of type $A$ on a certain set of weights. In positive characteristic we give a linkage…

Representation Theory · Mathematics 2007-09-07 Anton Cox , Maud De Visscher , Stephen Doty , Paul Martin

We determine the blocks of the periplectic Brauer algebra over any field of odd characteristic.

Representation Theory · Mathematics 2019-02-13 Sigiswald Barbier , Anton Cox , Maud De Visscher

We study the representation theory of the cyclotomic Brauer algebra via truncation to idempotent subalgebras which are isomorphic to a product of walled and classical Brauer algebras. In particular, we determine the block structure and…

Representation Theory · Mathematics 2012-05-16 C. Bowman , A. G. Cox , M. De Visscher

Brauer algebras form a tower of cellular algebras. There is a well-defined notion of limiting blocks for these algebras. In this paper we give a complete description of these limiting blocks over any field of positive characteristic. We…

Representation Theory · Mathematics 2012-12-27 Oliver King

We give a geometric description of the blocks of the Brauer algebra $B_n(\delta)$ in characteristic zero as orbits of the Weyl group of type $D_n$. We show how the corresponding affine Weyl group controls the representation theory of the…

Representation Theory · Mathematics 2014-02-26 Anton Cox , Maud De Visscher , Paul Martin

We obtain a characteristic-free decomposition of tensor space, regarded as a module for the Brauer centralizer algebra.

Representation Theory · Mathematics 2011-04-22 S. R. Doty

In this paper we describe the blocks of the partition algebra over a field of positive characteristic.

Representation Theory · Mathematics 2015-01-22 C. Bowman , M. De Visscher , O. King

We introduce Brauer algebras associated to complex reflection groups of type $G(m,p,n)$, and study their representation theory via Clifford theory. In particular, we determine the decomposition numbers of these algebras in characteristic…

Representation Theory · Mathematics 2013-03-13 C. Bowman , A. G. Cox

We survey results on multiserial algebras, special multiserial algebras and Brauer configuration algebras. A structural property of modules over a special multiserial algebra is presented. Almost gentle algebras are introduced and we…

Representation Theory · Mathematics 2017-03-07 Edward L. Green , Sibylle Schroll

We give a closed formula for the graded decomposition numbers of the blob algebra over a field of characteristic zero at a root of unity.

Representation Theory · Mathematics 2014-10-09 David Plaza

In this paper we introduce a generalization of a Brauer graph algebra which we call a Brauer configuration algebra. As with Brauer graphs and Brauer graph algebras, to each Brauer configuration, there is an associated Brauer configuration…

Representation Theory · Mathematics 2017-05-19 Edward L. Green , Sibylle Schroll

We study the periplectic Brauer algebra introduced by Moon in the study of invariant theory for periplectic Lie superalgebras. We determine when the algebra is quasi-hereditary and, for fields of characteristic zero, describe the block…

Representation Theory · Mathematics 2018-11-27 Kevin Coulembier

In this paper we study multiserial and special multiserial algebras. These algebras are a natural generalization of biserial and special biserial algebras to algebras of wild representation type. We define a module to be multiserial if its…

Representation Theory · Mathematics 2016-08-08 Edward L. Green , Sibylle Schroll

For each natural number n greater than 1, we define an algebra satisfying many properties that one might expect to hold for a Brauer algebra of type Cn. The monomials of this algebra correspond to scalar multiples of symmetric Brauer…

Representation Theory · Mathematics 2015-03-17 Arjeh M. Cohen , Shoumin Liu , Shona Yu

Let k be an algebraically closed field of characteristic p>0, let m,r be integers with m\ge1, r\ge0 and m\ge r and let S_0(2m,r) be the symplectic Schur algebra over k as introduced by the first author. We introduce the symplectic Schur…

Representation Theory · Mathematics 2009-02-11 Stephen Donkin , Rudolf Tange

We compute the Brauer group of the moduli stack of hyperelliptic curves $\mathcal{H}_g$ over any field of characteristic zero. In positive characteristic, we compute the part of the Brauer group whose order is prime to the characteristic of…

Algebraic Geometry · Mathematics 2020-10-22 Andrea Di Lorenzo , Roberto Pirisi

We compute the Brauer group of the moduli stack of elliptic curves over the integers, localizations of the integers, finite fields of odd characteristic, and algebraically closed fields of characteristic not $2$. The methods involved…

Algebraic Geometry · Mathematics 2020-10-21 Benjamin Antieau , Lennart Meier

We compute the Brauer group of the moduli stack of stable PGL(r)-bundles on a curve $X$ over an algebraically closed field of characteristic zero. We also show that the Brauer group of such a moduli stack coincides with the Brauer group of…

Algebraic Geometry · Mathematics 2010-04-28 Indranil Biswas , Amit Hogadi

There are similarities between algebraic Lie theory and a geometric description of the blocks of the Brauer algebra in characteristic zero. Motivated by this, we study the alcove geometry of a certain reflection group action. We provide…

Representation Theory · Mathematics 2008-07-25 Anton Cox , Maud De Visscher , Paul Martin

We present an algebra related to the Coxeter group of type F4 which can be viewed as the Brauer algebra of type F4 and is obtained as a subalgebra of the Brauer algebra of type E6. We also describe some properties of this algebra.

Representation Theory · Mathematics 2012-06-29 Shoumin Liu
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