Search
Now showing items 1-1 of 1
An Algebraic Preservation Theorem for Aleph-Zero Categorical Quantified Constraint Satisfaction
(Logical Methods in Computer Science c/o Institut f. Theoretische Informatik, Technische Universität Braunschweig, 2013-03-29)
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 ...