The Two Bicliques Problem is in NP intersection coNP

M. A. Shalu; S. Vijayakumar

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arXiv · 1104.3463

The Two Bicliques Problem is in NP intersection coNP

M. A. Shalu·S. Vijayakumar

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Abstract

We show that the problem of deciding whether the vertex set of a graph can be covered with at most two bicliques is in NP$\cap$coNP. We thus almost determine the computational complexity of a problem whose status has remained open for quite some time. Our result implies that a polynomial time algorithm for the problem is more likely than it being NP-complete unless P = NP.

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M. A. Shalu, S. Vijayakumar. 2011-04-18. The Two Bicliques Problem is in NP intersection coNP. https://arxiv.org/abs/1104.3463

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