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arXiv 1612.04768math.RT
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群代数的霍普夫代数结构和张量积

Hopf algebra structures and tensor products for group algebras

Jon F. Carlson, Srikanth B. Iyengar

摘要:

初等交换p-群的模群代数同构于交换限制李代数的限制包络代数。对该代数的不同处理方式导致了决定模上同调的上积的不同霍普夫代数结构。本文证明了由1次Bocksteins生成的上同调环的多项式子环的元素的乘积与这些余代数结构的选择无关。

英文摘要:

The modular group algebra of an elementary abelian p-group is isomorphic to the restricted enveloping algebra of commutative restricted Lie algebra. The different ways of regarding this algebra result in different Hopf algebra structures that determine cup products on cohomology of modules. However, it is proved in this paper that the products with elements of the polynomial subring of the cohomology ring generated by the Bocksteins of the degree one elements are independent of the choice of these coalgebra structures.

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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