Hopfish algebras
Hopfish algebras
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Hopfish代数
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
Chenchang Zhu
中科院分区:
文献类型:
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作者:
Xiang Tang;A. Weinstein;Chenchang Zhu
We introduce a notion of “hopfish algebra” structure on an associative algebra, allowing the structure morphisms (coproduct, counit, antipode) to be bimodules rather than algebra homomorphisms. We prove that quasi-Hopf algebras are hopfish algebras. We find that a hopfish structure on the algebra of functions on a finite set G is closely related to a “hypergroupoid” structure on G . The Morita theory of hopfish algebras is also discussed.