Subalgebras of FA-presentable algebras
Subalgebras of FA-presentable algebras
复制标题
FA 可表示代数的子代数
DOI:
10.1007/s00012-014-0293-0
复制
发表时间:
2014
影响因子:
0.6
通讯作者:
Cain A
中科院分区:
文献类型:
--
作者:
Cain A
Automatic presentations, also called FA-presentations, were introduced to extend finite model theory to infinite structures whilst retaining the solubility of fundamental decision problems. This paper studies FA-presentable algebras. First, an example is given to show that the class of finitely generated FA-presentable algebras is not closed under forming finitely generated subalgebras, even within the class of algebras with only unary operations. In contrast, a finitely generated subalgebra of an FA-presentable algebra with a single unary operation is itself FA-presentable. Furthermore, it is proven that the class of unary FA-presentable algebras is closed under forming finitely generated subalgebras and that the membership problem for such subalgebras is decidable.
登录
查看更多内容
DOI:
10.1016/j.ic.2009.02.005
发表时间:
2009
期刊:
Inf. Comput.
影响因子:
--
作者:
Alan J. Cain;G. Oliver;N. Ruškuc;R. Thomas
通讯作者:
R. Thomas
影响因子:
0.9
作者:
G. Oliver;R. Thomas
通讯作者:
R. Thomas
影响因子:
0.9
作者:
A. Nies;R. Thomas
通讯作者:
R. Thomas
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. Ahmedou;W. Reichel
通讯作者:
W. Reichel
影响因子:
0.8
作者:
A. Nies;P. Semukhin
通讯作者:
P. Semukhin