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  Beigel, Richard Add to Alert Profile  
 
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  3-coloring in time O(1.3289)
Beigel R., Eppstein D. Journal of Algorithms 54(2): 168-204, 2005.  Type: Article

The main result of this paper is a proof that the three-coloring problem can be solved in worst-case time O(1.3289n). The previous record for this problem was the O(1....
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Jul 5 2005  
  PP is closed under intersection
Beigel R., Reingold N., Spielman D.  Theory of computing (Proceedings of the twenty-third annual ACM symposium, New Orleans, Louisiana, United States, May 5-8, 1991) 1-9, 1991.  Type: Proceedings

PP (probabilistic polynomial time) was first studied in the 1970s, and basic properties of the class have been known since then (for instance, NP ⊆ PP, and PP is closed under complement). It had remained an open question wheth...
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Oct 1 1991  

   
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