Cardinal, Jean and Doignon, Jean-Paul and Merckx, Keno - On the shelling antimatroids of split graphs

dmtcs:3201 - Discrete Mathematics & Theoretical Computer Science, March 24, 2017, Vol 19 no. 1
On the shelling antimatroids of split graphs

Authors: Cardinal, Jean and Doignon, Jean-Paul and Merckx, Keno

Chordal graph shelling antimatroids have received little attention with regard to their combinatorial properties and related optimization problems, as compared to the case of poset shelling antimatroids. Here we consider a special case of these antimatroids, namely the split graph shelling antimatroids. We show that the feasible sets of such an antimatroid relate to some poset shelling antimatroids constructed from the graph. We discuss a few applications, obtaining in particular a simple polynomial-time algorithm to find a maximum weight feasible set. We also provide a simple description of the circuits and the free sets.


Source : oai:arXiv.org:1512.06073
Volume: Vol 19 no. 1
Section: Combinatorics
Published on: March 24, 2017
Submitted on: March 17, 2017
Keywords: Computer Science - Discrete Mathematics,Computer Science - Data Structures and Algorithms,Mathematics - Combinatorics


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