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arXiv 1503.04666math.RA
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分次代数的同构问题及其在小p-群的mod-p上同调环中的应用

The isomorphism problem for graded algebras and its application to mod-p cohomology rings of small p-groups

Bettina Eick, Simon King

摘要:

非平凡有限p-群的mod-p上同调环是p元域上的一个无限维的分次酉代数,生成元为正度.我们描述了一个有效的算法来测试,如果两个这样的代数是分次同构。作为应用,我们确定了阶不超过100的所有p-群的模p上同调环之间的分次同构。

英文摘要:

The mod-p cohomology ring of a non-trivial finite p-group is an infinite dimensional, finitely presented graded unital algebra over the field with p elements, with generators in positive degrees. We describe an effective algorithm to test if two such algebras are graded isomorphic. As application, we determine all graded isomorphisms between the mod-p cohomology rings of all p-groups of order at most 100.

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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