The commutative cohomology of nilmonoids, revisited

被引：0
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作者：
Pierre Antoine Grillet
机构：
来源：
Semigroup Forum | 2020年 / 101卷
关键词：
Nilsemigroup; Nilmonoid; Commutative cohomology; Group coextension; Groupfree semigroup; Schützenberger functor; Overpath method; Basic relation; Branching pair; Branching relation;
D O I：
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学科分类号：
摘要：
A nilmonoid is a nilsemigroup N with an identity element adjoined. New properties of the canonical presentation of N yield a more precise characterization of 2-cocycles, improvements in the computation of the cohomology of N, and a universal coefficients theorem.
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页码：654 / 679
页数：25
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