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Robust Approximation and the Arity Barrier at Width Two

Proença, Nathan Benedetto et al.
arXiv (All) · Papers
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computational-complexity
Zwick's algorithm for Horn satisfiability shows that constraints of unbounded arity can admit a robust approximation guarantee independent of the arity. For finite constraint languages, Barto and Kozik proved that robust approximability is characterized by bounded width. We ask whether arity-indepen
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