A minor-monotone graph parameter based on oriented matroids
نویسندگان
چکیده
منابع مشابه
Monotone Paths on Zonotopes and Oriented Matroids
Monotone paths on zonotopes and the natural generalization to maximal chains in the poset of topes of an oriented matroid or arrangement of pseudo-hyperplanes are studied with respect to a kind of local move, called polygon move or ip. It is proved that any monotone path on a d-dimensional zonotope with n generators admits at least d2n=(n ? d + 2)e ? 1 ips for all n d+2 4 and that for any xed v...
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ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 1997
ISSN: 0012-365X
DOI: 10.1016/s0012-365x(96)00172-0