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Decomposing a projective module and several submodules

โœ Scribed by Lawrence S Levy

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
593 KB
Volume
20
Category
Article
ISSN
0001-8708

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๐Ÿ“œ SIMILAR VOLUMES

Projective functors and the restriction
Projective functors and the restriction of a Verma module to a subalgebra of Levi type
โœ Sergei Khoroshkin ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Springer ๐ŸŒ English โš– 298 KB

We observe that the restriction of a Verma module over a semi-simple Lie algebra to a subalgebra of Levi type may be viewed as a projective functor. By simple arguments we prove that this restriction can be decomposed into a direct sum of standard indecomposables in the category 0. For the restricti