A Polynomial Recognition of Unit Forms.
Electronic Notes in Discrete Mathematics(2016)
Abstract
In this paper we introduce a polynomial algorithm for the recognition of weakly nonnegative unit forms. The algorithm identify hypercritical restrictions testing every 9-point subset of the quadratic form associated graph. With Depth First Search strategy, we use a similar approach for the weakly positive recognition.
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Key words
unit form,polynomial algorithm,graph
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