An Algebraic Preservation Theorem for Aleph-Zero Categorical Quantified Constraint Satisfaction

We prove an algebraic preservation theorem for positive Horn definability in aleph-zero categorical structures. In particular, we define and study a construction which we call the periodic power of a structure, and define a periomorphism of a structure to be a homomorphism from the periodic power of...

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書目詳細資料
發表在:Logical Methods in Computer Science
Main Authors: Hubie Chen, Moritz Müller
格式: Article
語言:英语
出版: Logical Methods in Computer Science e.V. 2013-03-01
主題:
在線閱讀:https://lmcs.episciences.org/1009/pdf

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