Criterion for smoothness of Schubert varieties in Sl(n)/B
Criterion for smoothness of Schubert varieties in Sl(n)/B
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Sl(n)/B 中舒伯特簇的平滑度准则
DOI:
10.1007/bf02881113
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
B. Sandhya
中科院分区:
文献类型:
--
作者:
V. Lakshmibai;B. Sandhya
LetG=Sl(n) andB, the Borel subgroup ofG consisting of upper triangular matrices. Letw∈Sn andX(w)=BwB(modB), the associated Schubert variety inG/B. In this paper, we give a geometric criterion for the smoothness ofX(w). This criterion admits a neat combinatorial description in terms of the permutationw.