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Idempotents in matrix group rings

โœ Scribed by Gurmeet K. Chadha; I.B.S. Passi


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
108 KB
Volume
94
Category
Article
ISSN
0022-4049

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We show that for each finite cohomological Mackey functor on a finite group G there exist explicit relations in the category of finite abelian groups between the evaluations of the Mackey functor at all the subgroups, one for each conjugacy class of nonhypo-elementary subgroups of G. Furthermore, we