Separable extensions for crossed products over monoidal Hom-Hopf algebras
Separable extensions for crossed products over monoidal Hom-Hopf algebras
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幺半群 Hom-Hopf 代数上交叉积的可分离扩展
DOI:
10.1142/s021949881850161x
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发表时间:
2017-08
影响因子:
0.8
通讯作者:
Zhang Liangyun
中科院分区:
文献类型:
--
作者:
Wang Zhongwei;Chen Yuanyuan;Zhang Liangyun
Let [Formula: see text] be a Frobenius monoidal Hom-Hopf algebra, and [Formula: see text] an [Formula: see text]-Hom-Hopf Galois extension of [Formula: see text]. We prove that the separability of the Hom-algebra extension [Formula: see text] is equivalent to the existence of a trace one element [Formula: see text] that centralizes [Formula: see text]. As applications, we obtain the differentiated conditions for the extension [Formula: see text] to be separable, and deduce a Doi’s result of Hom-type.
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