On solving sparse algebraic equations over finite fields

  • Authors:
  • Igor Semaev

  • Affiliations:
  • Department of Informatics, University of Bergen, Bergen, Norway

  • Venue:
  • Designs, Codes and Cryptography
  • Year:
  • 2008

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Abstract

A system of algebraic equations over a finite field is called sparse if each equation depends on a small number of variables. In this paper new deterministic algorithms for solving such equations are presented. The mathematical expectation of their running time is estimated. These estimates are at present the best theoretical bounds on the complexity of solving average instances of the above problem. In characteristic 2 the estimates are significantly lower the worst case bounds provided by SAT solvers.