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A simplified proof of the FPRAS for counting perfect matchings

Liu, Chenghua et al.
arXiv (All) · Papers
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combinatoricsdata-structures-and-algorithms
We give a simplified, self-contained proof of OpenAI's FPRAS for counting perfect matchings in general graphs. As in the original proof, we use a restricted Poincaré inequality for two matchings to sample weighted perfect matchings and estimate their total weight. We simplify the proof of this inequ
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