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ON CERTAIN BLOCKS OF SCHUR ALGEBRAS

Published online by Cambridge University Press:  09 April 2001

JOSEPH CHUANG  and
KAI MENG TAN
JOSEPH CHUANG
Affiliation:
St John's College, Oxford OX1 3JP; e-mail: [email protected]
KAI MENG TAN
Affiliation:
Department of Mathematics, National University of Singapore, Lower Kent Ridge Road, Singapore 119260; e-mail: [email protected]
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Abstract

In this paper, what is already known about defect 2 blocks of symmetric groups is used to deduce information about the corresponding blocks of Schur algebras. This information includes Ext-quivers and decomposition numbers, as well as Loewy structures of the Weyl modules, principal indecomposable modules and tilting modules.

Type
NOTES AND PAPERS
Information
Bulletin of the London Mathematical Society , Volume 33 , Issue 2 , March 2001 , pp. 157 - 167
Copyright
© The London Mathematical Society 2001

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