Associativity and the cosmash product in operadic varieties of algebras
Associativity and the cosmash product in operadic varieties of algebras
复制标题
歌剧代数簇中的结合性和 cosmash 积
DOI:
10.1215/00192082-10678862
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发表时间:
2022
影响因子:
0.6
通讯作者:
Corentin Vienne
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文献类型:
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作者:
Ulo Reimaa;T. Linden;Corentin Vienne
In this article, we characterise the operadic variety of commutative associative algebras over a field via a (categorical) condition: the associativity of the so-called cosmash product. This condition, which is closely related to commutator theory, is quite strong: for example, groups do not satisfy it. However, in the case of commutative associative algebras, the cosmash product is nothing more than the tensor product; which explains why in this case it is associative. We prove that in the setting of operadic varieties of algebras over a field, it is the only example. Further examples in the non-operadic case are also discussed.
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