An Algorithmic Approach to the Lovász Local Lemma. I
An Algorithmic Approach to the Lovász Local Lemma. I
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DOI:
10.1002/rsa.3240020402
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发表时间:
1991-12
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影响因子:
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通讯作者:
J. Beck
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文献类型:
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作者:
J. Beck
The Lovasz Local Lemma is a remarkable sieve method to prove the existence of certain structures without supplying any efficient way of finding these structures. In this article we convert some of the applications of the Local Lemma into polynomial time sequential algorithms (at the cost of a weaker constant factor in the “exponent”). Our main example is the following: assume that in an n‐uniform hypergraph every hyperedge intersects at most 2n/48 other hyperedges, then there is a polynomial time algorithm that finds a two‐coloring of the points such that no hyperedge is monochromatic. © 1991 Wiley Periodicals, Inc.