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arXiv · 1112.1360

On the satisfiability of random regular signed SAT formulas

Christian Laus·Dirk Oliver Theis
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Abstract

Regular signed SAT is a variant of the well-known satisfiability problem in which the variables can take values in a fixed set V \subset [0,1], and the `literals' have the form "x \le a" or "x \ge a". We answer some open question regarding random regular signed k-SAT formulas: the probability that a random formula is satisfiable increases with |V|; there is a constant upper bound on the ratio m/n of clauses m over variables n, beyond which a random formula is asypmtotically almost never satisfied; for k=2 and V=[0,1], there is a phase transition at m/n=2.

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Christian Laus, Dirk Oliver Theis. 2011-12-06. On the satisfiability of random regular signed SAT formulas. https://arxiv.org/abs/1112.1360

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