Cellularity of endomorphism algebras of tilting objects
Cellularity of endomorphism algebras of tilting objects
复制标题
倾斜物体自同态代数的细胞性
DOI:
10.1016/j.aim.2022.108387
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发表时间:
2022
影响因子:
1.7
通讯作者:
Bellamy G
中科院分区:
文献类型:
--
作者:
Bellamy G
We show that, in a highest weight category with duality, the endomorphism algebra of a tilting object is naturally a cellular algebra. Our proof generalizes a recent construction of Andersen, Stroppel, and Tubbenhauer [4]. This result raises the question of whether all cellular algebras can be realized in this way. The construction also works without the presence of a duality and yields standard bases, in the sense of Du and Rui, which have similar combinatorial features to cellular bases. As an application, we obtain standard bases—and thus a general theory of “cell modules”—for Hecke algebras associated to finite complex reflection groups (as introduced by Broué, Malle, and Rouquier) via category O of the rational Cherednik algebra. For real reflection groups these bases are cellular.
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2.5
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DOI:
10.1007/3-540-27950-4
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2005-10
期刊:
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DOI:
--
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