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Almost split sequences for Cohen-Macaulay-modules

✍ Scribed by Maurice Auslander; Idun Reiten


Publisher
Springer
Year
1987
Tongue
English
Weight
245 KB
Volume
277
Category
Article
ISSN
0025-5831

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πŸ“œ SIMILAR VOLUMES


Almost Split Sequences for Comodules
✍ William Chin; Mark Kleiner; Declan Quinn πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 147 KB

Let be a coalgebra over a field k. We introduce an operator Tr that takes a right quasi-finitely copresented -comodule M to a left quasi-finitely copresentedcomodule Tr M. If M is indecomposable not injective and Tr M is finite-dimensional over k, we prove the existence of an almost split sequence 0