Document Type

Article

Publication Date

1-1-1990

Abstract

A well-known result of Tutte is that U2,4, the 4-point line, is the only non-binary matroid M such that, for every element e, both Mβe and M e, the deletion and contraction of e from M, are binary. This paper characterizes those non-binary matroids M such that, for every element e, Mβe or M e is binary. © 1990.

Publication Source (Journal or Book title)

Journal of Combinatorial Theory, Series B

First Page

181

Last Page

189

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