Multilinear representation conjecture for skew partial fields

A skew partial field is a partial field whose multiplicative group need not be commutative. Let P(n,F)\mathbb{P}(n,\mathbb{F}) denote the partial field associated with n×nn\times n matrices over a field F\mathbb{F}, and let a partial-field homomorphism preserve the partial-field structure. Multilinear representation conjecture. For every skew partial field P\mathbb{P} there exists a partial-field homomorphism

PP(n,F)\mathbb{P}\rightarrow \mathbb{P}(n,\mathbb{F})

for some integer nn and field F\mathbb{F}. This would characterize matroids representable over skew partial fields as precisely those having multilinear representations over fields; the paper reports this as an open problem motivated by its examples.

Sources & referencesView supporting material

Primary source

R. A. Pendavingh and S. H. M. van Zwam, “Representing some non-representable matroids”, arXiv:1106.3088 (2011).

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