English

Matching Orderable and Separable Hypergraphs

Combinatorics 2022-02-03 v1 Discrete Mathematics Data Structures and Algorithms Optimization and Control

Abstract

A perfect matching in a hypergraph is a set of edges that partition the set of vertices. We study the complexity of deciding the existence of a perfect matching in orderable and separable hypergraphs. We show that the class of orderable hypergraphs is strictly contained in the class of separable hypergraphs. Accordingly, we show that for each fixed kk, deciding perfect matching for orderable kk-hypergraphs is polynomial time doable, but for each fixed k3k\geq 3, it is NP-complete for separable hypergraphs.

Keywords

Cite

@article{arxiv.2202.00902,
  title  = {Matching Orderable and Separable Hypergraphs},
  author = {Shmuel Onn},
  journal= {arXiv preprint arXiv:2202.00902},
  year   = {2022}
}