Cohomology of simple modules for sl3(k) in characteristic 3

In this paper we calculate cohomology of a classical Lie algebra of type A2 over an algebraically field k of characteristic p = 3 with coefficients in simple modules. To describe their structure we will consider them as modules over an algebraic group SL3(k). In the case of characteristic p...

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Main Author: A.A. Ibrayeva
Format: Article
Language:English
Published: Academician Ye.A. Buketov Karaganda University 2021-09-01
Series:Қарағанды университетінің хабаршысы. Математика сериясы
Online Access:https://mathematics-vestnik.ksu.kz/apart/2021-103-3/4.pdf
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author A.A. Ibrayeva
author_facet A.A. Ibrayeva
author_sort A.A. Ibrayeva
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description In this paper we calculate cohomology of a classical Lie algebra of type A2 over an algebraically field k of characteristic p = 3 with coefficients in simple modules. To describe their structure we will consider them as modules over an algebraic group SL3(k). In the case of characteristic p = 3, there are only two peculiar simple modules: a simple that module isomorphic to the quotient module of the adjoint module by the center, and a one-dimensional trivial module. The results on the cohomology of simple nontrivial module are used for calculating the cohomology of the adjoint module. We also calculate cohomology of the simple quotient algebra Lie of A2 by the center.
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series Қарағанды университетінің хабаршысы. Математика сериясы
spelling doaj.art-d40e68ed4b03404e9bec89d1d6f41ec72023-09-14T06:33:42ZengAcademician Ye.A. Buketov Karaganda UniversityҚарағанды университетінің хабаршысы. Математика сериясы2518-79292663-50112021-09-011033364310.31489/2021M3/36-43Cohomology of simple modules for sl3(k) in characteristic 3A.A. Ibrayeva In this paper we calculate cohomology of a classical Lie algebra of type A2 over an algebraically field k of characteristic p = 3 with coefficients in simple modules. To describe their structure we will consider them as modules over an algebraic group SL3(k). In the case of characteristic p = 3, there are only two peculiar simple modules: a simple that module isomorphic to the quotient module of the adjoint module by the center, and a one-dimensional trivial module. The results on the cohomology of simple nontrivial module are used for calculating the cohomology of the adjoint module. We also calculate cohomology of the simple quotient algebra Lie of A2 by the center.https://mathematics-vestnik.ksu.kz/apart/2021-103-3/4.pdf
spellingShingle A.A. Ibrayeva
Cohomology of simple modules for sl3(k) in characteristic 3
Қарағанды университетінің хабаршысы. Математика сериясы
title Cohomology of simple modules for sl3(k) in characteristic 3
title_full Cohomology of simple modules for sl3(k) in characteristic 3
title_fullStr Cohomology of simple modules for sl3(k) in characteristic 3
title_full_unstemmed Cohomology of simple modules for sl3(k) in characteristic 3
title_short Cohomology of simple modules for sl3(k) in characteristic 3
title_sort cohomology of simple modules for sl3 k in characteristic 3
url https://mathematics-vestnik.ksu.kz/apart/2021-103-3/4.pdf
work_keys_str_mv AT aaibrayeva cohomologyofsimplemodulesforsl3kincharacteristic3