English

On the satisfiability of random regular signed SAT formulas

Discrete Mathematics 2011-12-08 v1 Combinatorics

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.

Keywords

Cite

@article{arxiv.1112.1360,
  title  = {On the satisfiability of random regular signed SAT formulas},
  author = {Christian Laus and Dirk Oliver Theis},
  journal= {arXiv preprint arXiv:1112.1360},
  year   = {2011}
}

Comments

12 pages

R2 v1 2026-06-21T19:47:21.942Z