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On some H-Galois objects and their polynomial H-identities
Archiv der Mathematik ( IF 0.5 ) Pub Date : 2020-08-08 , DOI: 10.1007/s00013-020-01508-6
Waldeck Schützer , Abel Gomes de Oliveira

Let k be an algebraically closed field of characteristic 0 and H a non-semisimple monomial Hopf algebra. Extending a previous result of Kassel (Ann Math Blaise Pascal 20: 175–191, 2013), we prove that some (not necessarily bi-)Galois objects over H are determined up to H -comodule algebra isomorphism by their polynomial H -identities.

中文翻译:

关于一些 H-Galois 对象及其多项式 H-恒等式

设 k 是特征为 0 的代数闭域,H 是非半单单项式 Hopf 代数。扩展 Kassel 的先前结果 (Ann Math Blaise Pascal 20: 175–191, 2013),我们证明 H 上的一些(不一定是双)Galois 对象由多项式 H 恒等式确定为 H 余模代数同构。
更新日期:2020-08-08
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