Homomorphisms from an arbitrary Specht module to one corresponding to a hook

Joseph Loubert

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arXiv · 1411.0750

Homomorphisms from an arbitrary Specht module to one corresponding to a hook

Joseph Loubert

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Abstract

We use the presentation of the Specht modules given by Kleshchev-Mathas-Ram to derive results about Specht modules. In particular, we determine all homomorphisms from an arbitrary Specht module to a fixed Specht module corresponding to any hook partition. Along the way, we give a complete description of the action of the standard KLR generators on the hook Specht module. This work generalizes a result of James.

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BibTeX RIS

Joseph Loubert. 2014-11-04. Homomorphisms from an arbitrary Specht module to one corresponding to a hook. https://arxiv.org/abs/1411.0750

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