Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Tuesday, October 31, 2006, 12:15 pm

Duration: This information is not available in the database

Location: CAB G51

Speaker: Dominik Scheder

Fast deterministic algorithms for 3-SAT

The currently fastest deterministic algorithms for 3-SAT use the idea of covering {0,1}^n, the set of all truth assignments, by a number of Hamming balls of a certain radius, and then search each ball separately.

Using an optimal radius, this gives an O(1.5^n)-algorithm for 3-SAT. The currently fastest algorithm, due to Brueggeman and Kern, uses clever branching rules for searching Hamming balls, and runs in time O(1.473^n). We present a similar algorithm which is simpler and matches this running time.


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