The Combinatorics of the Garsia-Haiman Modules for Hook Shapes
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modulesgarsia-haimanbasesdecompositionhookrulesshapesalgebra
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Several bases of the Garsia-Haiman modules for hook shapes are given, as well as combinatorial decomposition rules for these modules. These bases and rules extend the classical ones for the coinvariant algebra of type $A$. We also give a decomposition of the Garsia-Haiman modules into descent representations.
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