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On the satisfiability of random $3$-SAT formulas with $k$-wise independent clauses

Combinatorics 2024-11-07 v1 Computational Complexity Discrete Mathematics

Abstract

The problem of identifying the satisfiability threshold of random 33-SAT formulas has received a lot of attention during the last decades and has inspired the study of other threshold phenomena in random combinatorial structures. The classical assumption in this line of research is that, for a given set of nn Boolean variables, each clause is drawn uniformly at random among all sets of three literals from these variables, independently from other clauses. Here, we keep the uniform distribution of each clause, but deviate significantly from the independence assumption and consider richer families of probability distributions. For integer parameters nn, mm, and kk, we denote by \DistFamilyk(n,m)\DistFamily_k(n,m) the family of probability distributions that produce formulas with mm clauses, each selected uniformly at random from all sets of three literals from the nn variables, so that the clauses are kk-wise independent. Our aim is to make general statements about the satisfiability or unsatisfiability of formulas produced by distributions in \DistFamilyk(n,m)\DistFamily_k(n,m) for different values of the parameters nn, mm, and kk.

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Cite

@article{arxiv.2411.03813,
  title  = {On the satisfiability of random $3$-SAT formulas with $k$-wise independent clauses},
  author = {Ioannis Caragiannis and Nick Gravin and Zhile Jiang},
  journal= {arXiv preprint arXiv:2411.03813},
  year   = {2024}
}

Comments

26 pages, 1 fugure