On lifting maps between Weyl modules: Can bad shapes be resolved by better shapes?

DOI10.1006/aima.1994.1039zbMath0835.20053OpenAlexW2024819524MaRDI QIDQ1328485

Rafael Sánchez, David A. Buchsbaum

Publication date: 17 August 1994

Published in: Advances in Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/aima.1994.1039

zbMATH Keywords

weight modulesskew shapesbad shapesfinite projective resolutions of Weyl modulesgood shapesintertwining numbersliftings of maps

Mathematics Subject Classification ID

Combinatorial aspects of representation theory (05E10) Representations of finite symmetric groups (20C30) Representation theory for linear algebraic groups (20G05)

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Compressed straight tableaux and a distributive lattice of representations

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