Computing Ext Algebras for Finite Groups
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JON F. CARLSON; EDWARD L. GREEN; GERHARD J.A. SCHNIEDER
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Article
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1997
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Elsevier Science
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English
⚖ 355 KB
Suppose that G is a finite group and k is a field of characteristic p > 0. In this paper we describe a scheme for computing the Ext algebra of kG, i.e. the algebra Ext \* kg (T, T ) where T is the sum of irreducible kG-modules.