An introduction to presentations of monoid acts: quotients and subacts
An introduction to presentations of monoid acts: quotients and subacts
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幺半群行为介绍:商和子行为
DOI:
10.1080/00927872.2018.1498862
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发表时间:
2019
影响因子:
0.7
通讯作者:
Miller C
中科院分区:
文献类型:
--
作者:
Miller C
The purpose of this article is to introduce the theory of presentations of monoids acts. We aim to construct “nice” general presentations for various act constructions pertaining to subacts and Rees quotients. More precisely, given anM-actAand a subactBofA, on the one hand, we construct presentations forBand the Rees quotientA/Busing a presentation forA, and on the other hand, we derive a presentation forAfrom presentations forBandA/B. We also construct a general presentation for the union of two subacts. From our general presentations, we deduce a number of finite presentability results. Finally, we consider the case where a subactBhas a finite complement in anM-actA. We show that ifMis a finitely generated monoid andBis finitely presented, thenAis finitely presented. We also show that ifMbelongs to a wide class of monoids, including all finitely presented monoids, then the converse also holds.
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影响因子:
0.7
作者:
G. Baumslag
通讯作者:
G. Baumslag
影响因子:
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作者:
Gould V
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Gould V
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V. Gould
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作者:
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通讯作者:
R. Thomas
影响因子:
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