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A Non-Existence Theorem for Almost Split Sequences

โœ Scribed by Paquette, Charles


Book ID
127099755
Publisher
Taylor and Francis Group
Year
2012
Tongue
English
Weight
172 KB
Volume
40
Category
Article
ISSN
0092-7872

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๐Ÿ“œ SIMILAR VOLUMES


Almost Split Sequences for Comodules
โœ William Chin; Mark Kleiner; Declan Quinn ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 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