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Symmetric and exterior powers, linear source modules and representations of Schur superalgebras

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JournalProceedings of the London Mathematical Society
DatePublished - Nov 2001
Issue number3
Volume83
Number of pages33
Pages (from-to)647-680
Original languageEnglish

Abstract

We study modules for the general linear group (over an infinite field of arbitrary characteristic) which are direct summands of tensor products of exterior powers and symmetric powers of the natural module. These modules, which we call listing modules, include the tilting modules and the injective modules for Schur algebras. The modules are studied via their relationship to linear source modules for symmetric groups on the one hand, and simple modules for Schur superalgebras on the other. Listing modules are parametrized by certain pairs of partitions. They are used to describe, by generators and relations, the Grothendieck ring of polynomial functors generated by the symmetric and exterior powers. We also (continuing work of J. Grabmeier) describe the vertices and sources of linear source modules for symmetric groups.

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© 2001 by London Mathematical Society.

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