Computing Heegaard genus is NP-hard
Abstract
We show that Heegaard Genus ≤ g, the problem of deciding whether a triangulated 3-manifold admits a Heegaard splitting of genus less than or equal to g, is NP-hard. The result follows from a quadratic time reduction of the NP-complete problem CNF-SAT to Heegaard Genus ≤ g.
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