English

Computing the K-terminal Reliability of Circle Graphs

Discrete Mathematics 2016-10-17 v1

Abstract

Let G denote a graph and let K be a subset of vertices that are a set of target vertices of G. The K-terminal reliability of G is defined as the probability that all target vertices in K are connected, considering the possible failures of non-target vertices of G. The problem of computing K-terminal reliability is known to be #P-complete for polygon-circle graphs, and can be solved in polynomial-time for t-polygon graphs, which are a subclass of polygon-circle graphs. The class of circle graphs is a subclass of polygon-circle graphs and a superclass of t-polygon graphs. Therefore, the problem of computing K-terminal reliability for circle graphs is of particular interest. This paper proves that the problem remains #P-complete even for circle graphs. Additionally, this paper proposes a linear-time algorithm for solving the problem for proper circular-arc graphs, which are a subclass of circle graphs and a superclass of proper interval graphs.

Keywords

Cite

@article{arxiv.1610.04544,
  title  = {Computing the K-terminal Reliability of Circle Graphs},
  author = {Min-Sheng Lin and Chien-Min Chen},
  journal= {arXiv preprint arXiv:1610.04544},
  year   = {2016}
}
R2 v1 2026-06-22T16:21:09.650Z