Projective modules of 0-Schur algebras

Bernt Tore Jensen, Xiuping Su, Guiyu Yang

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Abstract

We study the structure of the 0-Schur algebra S0(n,r)S0(n,r) following the geometric construction of S0(n,r)S0(n,r) by Jensen and Su [12]. The main results are the construction and classification of indecomposable projective modules. In addition, we construct bases of these modules and their homomorphism spaces. We also give a filtration of projective modules, which leads to a decomposition of S0(n,r)S0(n,r) into indecomposable left modules.
Original languageEnglish
Pages (from-to)181-205
Number of pages25
JournalJournal of Algebra
Volume454
Early online date5 Feb 2016
DOIs
Publication statusPublished - 15 May 2016

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