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Threshold values of random K‐SAT from the cavity method
Authors:Stephan Mertens  Marc Mzard  Riccardo Zecchina
Institution:Stephan Mertens,Marc Mézard,Riccardo Zecchina
Abstract:Using the cavity equations of Mézard, Parisi, and Zecchina 23 ; Mézard and Zecchina, 24 we derive the various threshold values for the number of clauses per variable of the random K‐satisfiability problem, generalizing the previous results to K ≥ 4. We also give an analytic solution of the equations, and some closed expressions for these thresholds, in an expansion around large K. The stability of the solution is also computed. For any K, the satisfiability threshold is found to be in the stable region of the solution, which adds further credit to the conjecture that this computation gives the exact satisfiability threshold.© 2005 Wiley Periodicals, Inc. Random Struct. Alg., 2006
Keywords:Satisfiability  K‐SAT  Threshold Phenomenon  Phase Transition  Cavity Approach  Survey Propagation  Average Case Complexity
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