群的部分作用的反射器和全局化
Reflectors and globalizations of partial actions of groups
摘要:
给定群在具有代数结构的集合上的部分作用$θ$,构造了$θ$在相应的整体作用子范畴中的反射子,并研究了该反射子是整体化的问题.特别是,如果$θ$是一个部分行动的代数从各种${\sf V}$,然后我们表明,问题减少到某些广义汞齐的${\sf V}$ -代数与$θ$的可嵌入性。作为应用,我们描述了半群上的可整体化部分作用,其整环是理想。
英文摘要:
Given a partial action $θ$ of a group on a set with an algebraic structure, we construct a reflector of $θ$ in the corresponding subcategory of global actions and study the question when this reflector is a globalization. In particular, if $θ$ is a partial action on an algebra from a variety ${\sf V}$, then we show that the problem reduces to the embeddability of certain generalized amalgam of ${\sf V}$-algebras associated with $θ$. As an application, we describe globalizable partial actions on semigroups, whose domains are ideals.
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