## Let be a basic representation-finite biserial finite-dimensional k-algebra. We describe a method for constructing a multiplicative basis and the bound quiver of the Ext-algebra E = mβ₯0 Ext m /r /r of using the Auslander-Reiten quiver of .
Computing Ext Algebras for Finite Groups
β Scribed by JON F. CARLSON; EDWARD L. GREEN; GERHARD J.A. SCHNIEDER
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 355 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0747-7171
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β¦ Synopsis
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.
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