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.
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页码：654 / 679
页数：26
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