Some q-analogues of the Carter-Payne theorem
Some q-analogues of the Carter-Payne theorem
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卡特-佩恩定理的一些 q 类似物
DOI:
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发表时间:
2006
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通讯作者:
S. Lyle
中科院分区:
文献类型:
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作者:
S. Lyle
Abstract We prove a q-analogue of the Carter-Payne theorem for the two special cases corresponding to moving an arbitrary number of nodes between adjacent rows, or moving one node between an arbitrary number of rows. As a consequence, we show that these homomorphism spaces are one dimensional when q ≠ −1. We apply these results to complete the classification of the reducible Specht modules for the Hecke algebras of the symmetric groups when q ≠ −1. Our methods can also be used to determine certain other pairs of Specht modules between which there is a homomorphism. In particular, we describe the homomorphism space for an arbitrary partition μ.