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EJC
2007
13 years 2 months ago
The structure of the 3-separations of 3-connected matroids II
The authors showed in an earlier paper that there is a tree that displays, up to a natural equivalence, all non-trivial 3-separations of a 3-connected matroid. The purpose of this ...
James G. Oxley, Charles Semple, Geoff Whittle
EJC
2007
13 years 2 months ago
Geometric and algebraic combinatorics
Edwin R. van Dam, Willem H. Haemers
EJC
2000
13 years 3 months ago
The Generalized Baues Problem for Cyclic Polytopes I
Given an affine surjection of polytopes : P Q, the Generalized Baues Problem asks whether the poset of all proper polyhedral subdivisions of Q which are induced by the map has t...
Jörg Rambau, Francisco Santos
EJC
2000
13 years 3 months ago
Simple 0/1-Polytopes
For general polytopes, it has turned out that with respect to many questions it su ces to consider only the simple polytopes, i.e., d-dimensional polytopes where every vertex is c...
Volker Kaibel, Martin Wolff
EJC
2000
13 years 3 months ago
Further Investigations Involving Rook Polynomials With Only Real Zeros
We study the zeros of two families of polynomials related to rook theory and matchings in graphs. One of these families is based on the cover polynomial of a digraph introduced by ...
James Haglund