Completion and decomposition of a clutter into representable matroids
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This paper deals with the question of completing a monotone increasing family of subsets Gamma of a finite set Omega to obtain the linearly dependent subsets of a family of vectors of a vector space. Specifically, we prove that such vectorial completions of the family of subsets Gamma exist and, in addition, we show that the minimal vectorial completions of the family Gamma provide a decomposition of the clutter Lambda of the inclusion-minimal elements of Gamma. The computation of such vectorial decomposition of clutters is also discussed in some cases. (C) 2015 Elsevier Inc. All rights reserved.
CitationMartí-Farré, J., De Mier, A. Completion and decomposition of a clutter into representable matroids. "Linear algebra and its applications", 01 Maig 2015, vol. 472, p. 31-47.