The commutative cohomology of nilmonoids, revisited

被引：1

作者：

Grillet, Pierre Antoine

机构：

来源：

SEMIGROUP FORUM | 2020年 / 101卷 / 03期

关键词：

Nilsemigroup; Nilmonoid; Commutative cohomology; Group coextension; Groupfree semigroup; Schutzenberger functor; Overpath method; Basic relation; Branching pair; Branching relation;

D O I：

10.1007/s00233-020-10107-4

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

A nilmonoid is a nilsemigroupNwith an identity element adjoined. New properties of the canonical presentation ofNyield a more precise characterization of 2-cocycles, improvements in the computation of the cohomology ofN, and a universal coefficients theorem.

引用

页码：654 / 679

页数：26

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