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08/01/2021
Amalgamation is PSPACE-hard
The finite models of a universal sentence Φ in a finite relational signa...
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04/22/2021
Universal Horn Sentences and the Joint Embedding Property
The finite models of a universal sentence Φ are the age of a structure i...
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12/10/2020
Tractable Combinations of Temporal CSPs
The constraint satisfaction problem (CSP) of a first-order theory T is t...
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