Prefix monoids of groups and right units of special inverse monoids
Prefix monoids of groups and right units of special inverse monoids
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群的前缀幺半群和特殊逆幺半群的右单位
DOI:
10.1017/fms.2023.99
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Dolinka I
中科院分区:
文献类型:
--
作者:
Dolinka I
A prefix monoid is a finitely generated submonoid of a finitely presented group generated by the prefixes of its defining relators. Important results of Guba (1997), and of Ivanov, Margolis and Meakin (2001), show how the word problem for certain one-relator monoids, and inverse monoids, can be reduced to solving the membership problem in prefix monoids of certain one-relator groups. Motivated by this, in this paper, we study the class of prefix monoids of finitely presented groups. We obtain a complete description of this class of monoids. All monoids in this family are finitely generated, recursively presented and group-embeddable. Our results show that not every finitely generated recursively presented group-embeddable monoid is a prefix monoid, but for every such monoid, if we take a free product with a suitably chosen free monoid of finite rank, then we do obtain a prefix monoid. Conversely, we prove that every prefix monoid arises in this way. Also, we show that the groups that arise as groups of units of prefix monoids are precisely the finitely generated recursively presented groups, whereas the groups that arise as Schützenberger groups of prefix monoids are exactly the recursively enumerable subgroups of finitely presented groups. We obtain an analogous result classifying the Schützenberger groups of monoids of right units of special inverse monoids. We also give some examples of right cancellative monoids arising as monoids of right units of finitely presented special inverse monoids, and we show that not all right cancellative recursively presented monoids belong to this class.
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DOI:
--
发表时间:
1974
期刊:
影响因子:
--
作者:
G. Lallement
通讯作者:
G. Lallement
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
E. F. R. M. R. Quick;G. C. Smith
通讯作者:
G. C. Smith
影响因子:
0.7
作者:
Carl
通讯作者:
Carl
DOI:
10.1142/s0218196705002220
发表时间:
2005
期刊:
Int. J. Algebra Comput.
影响因子:
--
作者:
António Malheiro
通讯作者:
António Malheiro
影响因子:
1.3
作者:
Dolinka I
通讯作者:
Dolinka I