A note on nongraphic matroids
نویسندگان
چکیده
Tutte found an excluded minor characterization of graphic matroids with five excluded minors. A variation on Tutte's result is presented here. Let (e, f, g} be a circuit of a 3-connected nongraphic matroid M. Then M has a minor using e, A g isomorphic to either the 4-point line, the Fano matroid, or the bond matroid of K 3,3' 0 1984 Academic Press, Inc.
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ورودعنوان ژورنال:
- J. Comb. Theory, Ser. B
دوره 37 شماره
صفحات -
تاریخ انتشار 1984