Tags:constraint satisfaction, contextuality, finite-variable logics, k-consistency, quantum mechanics, sheaves and cohomology and Weisfeiler-Leman
Abstract:
We point out the surprising connections which have recently been observed between the famous Kochen-Specker theorem in the foundations of quantum mechanics, and algorithmic questions relating to constraint satisfaction and the celebrated Feder-Vardi Dichotomy Conjecture (recently proved by Bulatov and Zhuk), and to the Weisfeiler-Leman approximations to structure isomorphism.
From Kochen-Specker to Feder-Vardi and Weisfeiler-Leman