An algorithm for semistandardising homomorphisms
An algorithm for semistandardising homomorphisms
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半标准化同态算法
DOI:
10.1016/j.jalgebra.2012.04.020
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发表时间:
2011
影响因子:
0.9
通讯作者:
M. Fayers
中科院分区:
文献类型:
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作者:
M. Fayers
Suppose μ is a partition of n and λ a composition of n, and let Sμ, Mλdenote the Specht module and permutation module defined by Dipper and James for the Iwahori–Hecke algebra Hnof the symmetric group Wn. We give an explicit fast algorithm for expressing a tableau homomorphism ϕˆA:Sμ→Mλas a linear combination of semistandard homomorphisms. Along the way we provide a utility result related to removing rows from tableaux.