A Note on the Green Invariants in Finite Group Modular Representative Theory |
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Authors: | Morton E Harris |
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Institution: | (1) Department of Mathematics, Statistics and Computer Science (M/C 249), University of Illinois at Chicago, 851 South Morgan Street, Chicago, IL 60607-7045, USA |
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Abstract: | As in Finite Group Modular Representation Theory, let be a commutative complete noetherian ring with an algebraically closed residue field k. Let G be a finite group and let N be a normal subgroup of G. First suppose that V is an indecomposable -module, so that Inf
G
G/N
(V) is an indecomposable G-module. We relate the Green invariants of V as an -module to those of Inf
G
G/N
(V) as an G-module. Secondly, let V and W be indecomposable G-modules. Assume that W is an endo-permutation lattice and that is also an indecomposable G-module. We relate the Green invariants of the G-modules V and . (This situation arises under important Morita equivalences.)
Received: December 11, 2006. Revised: August 22, 2007. |
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Keywords: | Primary 2020 |
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