English

Matroid base polytope decomposition II : sequence of hyperplane splits

Combinatorics 2013-11-28 v2

Abstract

This is a continuation of the early paper concerning matroid base polytope decomposition. Here, we will present sufficient conditions on MM so its base matroid polytope P(M)P(M) has a {\em sequence} of hyperplane splits. The latter yields to decompositions of P(M)P(M) with two or more pieces for infinitely many matroids MM. We also present necessary conditions on the Euclidean representation of rank three matroids MM for the existences of decompositions of P(M)P(M) into 22 or 33 pieces. Finally, we prove that P(M1M2)P(M_1 \oplus M_2) has a sequence of hyperplane splits if either P(M1)P(M_1) or P(M2)P(M_2) also has a sequence of hyperplane splits.

Keywords

Cite

@article{arxiv.1209.3575,
  title  = {Matroid base polytope decomposition II : sequence of hyperplane splits},
  author = {Vanessa Chatelain and Jorge Ramirez Alfonsin},
  journal= {arXiv preprint arXiv:1209.3575},
  year   = {2013}
}
R2 v1 2026-06-21T22:06:05.781Z