Row and column removal theorems for homomorphisms of Specht modules and Weyl modules

Lyle, Sinéad and Mathas, Andrew (2005) Row and column removal theorems for homomorphisms of Specht modules and Weyl modules. Journal of Algebraic Combinatorics, 22 (2). pp. 151-179. ISSN 0925-9899

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Abstract

Let k be a field of prime characteristic p and E an n-dimensional vector space. We completely describe the tensor space E ?r viewed as a module for the Brauer algebra B k (r,d) with parameter d=2 and n=2. This description shows that while the tensor space still affords Schur–Weyl duality, it typically is not filtered by cell modules, and thus will not be equal to a direct sum of Young modules as defined in Hartmann and Paget (Math Z 254:333–357, 2006). This is very different from the situation for group algebras of symmetric groups. Other results about the representation theory of these Brauer algebras are obtained, including a new description of a certain class of irreducible modules in the case when the characteristic is two.

Item Type: Article
Faculty \ School: Faculty of Science > School of Mathematics (former - to 2024)
UEA Research Groups: Faculty of Science > Research Groups > Algebra and Combinatorics (former - to 2024)
Faculty of Science > Research Groups > Algebra, Number Theory, Logic, and Representations (ANTLR)
Depositing User: Vishal Gautam
Date Deposited: 18 Mar 2011 14:52
Last Modified: 06 Feb 2025 03:16
URI: https://ueaeprints.uea.ac.uk/id/eprint/20728
DOI: 10.1007/s10801-005-2511-5

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