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A factorization algorithm to compute Pfaffians
Published 17 Feb 2011 in hep-lat, cond-mat.stat-mech, and math.NA | (1102.3576v2)
Abstract: We describe an explicit algorithm to factorize an even antisymmetric N2 matrix into triangular and trivial factors. This allows for a straight forward computation of Pfaffians (including their signs) at the cost of N3/3 flops.
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