Countably Categorical Structures with n‐Degenerate Algebraic Closure
作者:
Evgueni V. Vassiliev,
期刊:
Mathematical Logic Quarterly
(WILEY Available online 1999)
卷期:
Volume 45,
issue 1
页码: 85-94
ISSN:0942-5616
年代: 1999
DOI:10.1002/malq.19990450108
出版商: WILEY‐VCH Verlag Berlin GmbH
关键词: n‐Degenerate algebraic closure;Distributive lattice of algebraically closed subsets;ω‐Categorical structure;Universal theory;Absolutely ubiquitous structure;Homogeneous J‐tree
数据来源: WILEY
摘要:
AbstractWe study the class of ω‐categorical structures withn‐degenerate algebraic closure for somenε ω, which includes ω‐categorical structures with distributive lattice of algebraically closed subsets (see [4]), and in particular those with degenerate (trivial) algebraic closure. We focus on the models of ω‐categorical universal theories, absolutely ubiquitous structures, and ω‐categorical structures generated by an indiscernible set. The assumption of n‐degeneracy implies total categoricity for the first class, stability for the second, and ω‐sta
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