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霍普夫代数的双积与双循环扭

Biproducts and Two-Cocycle Twists of Hopf Algebras

David E. Radford, Hans-Jürgen Schneider

摘要:

设$H$是域$k$上具有双射对极的Hopf代数,并假定$R{#}H$是双积.则$R$是Yetter-Drinfel'd范畴${}_H^H{\mathcal YD}$中的双代数.我们将双代数$(R{#}H)^{op}$和$(R{#}H)^o$分别明确地描述为双积$R^{\UOP}{#}H^{op}$和$R^{\UO}{#}H^o$,其中$R^{\UOP}$是${}^{H^{op}}_{H^{op}}{\mathcal YD}$中的双代数,$R^{\UO}$是${}^{H^o}_{H^o}{\mathcal YD}$中的双代数.我们利用这些结果描述了双积张量积上的双上圈扭双代数结构。

英文摘要:

Let $H$ be a Hopf algebra with bijective antipode over a field $k$ and suppose that $R{#}H$ is a bi-product. Then $R$ is a bialgebra in the Yetter--Drinfel'd category ${}_H^H{\mathcal YD}$. We describe the bialgebras $(R{#}H)^{op}$ and $(R{#}H)^o$ explicitly as bi-products $R^{\UOP}{#}H^{op}$ and $R^{\UO}{#}H^o$ respectively where $R^{\UOP}$ is a bialgebra in ${}^{H^{op}}_{H^{op}}{\mathcal YD}$ and $R^{\UO}$ is a bialgebra in ${}^{H^o}_{H^o}{\mathcal YD}$. We use our results to describe two-cocycle twist bialgebra structures on the tensor product of bi-products.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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