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Tensor products of primitive modules
- Source :
- Scopus-Elsevier, Università degli Studi di Padova-IRIS
- Publication Year :
- 2001
- Publisher :
- Birkhaeuser Verlag AG:Viaduktstrasse 42-44, CH 4051 Basel Switzerland:011 41 61 2050707, EMAIL: subscriptions@birkhauser.ch, INTERNET: http://www.birkhauser.ch, Fax: 011 41 61 2050792, 2001.
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Abstract
- Let F be a field and, for i = 1,2, let G i be a group and V i an irreducible, primitive, finite dimensional FG i -module. Set G = G 1 \times G 2 and $V=V_1\otimes _F V_2$ . The main aim of this paper is to determine sufficient conditions for V to be primitive as a G-module. In particular this turns out to be the case if V 1 and V 2 are absolutely irreducible and V 1 is absolutely quasi-primitive. Thus we extend a result of N.S. Heckster, who has shown that V is primitive whenever G is finite and F is the complex field. We also give a characterization of absolutely quasi-primitive modules. Ultimately, our results rely on the classification of finite simple groups.
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Scopus-Elsevier, Università degli Studi di Padova-IRIS
- Accession number :
- edsair.doi.dedup.....761f0021b8d539834a89c6fc0b7aed56