Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T11:58:19.002Z Has data issue: false hasContentIssue false

On the Independent Domination Number of Random Regular Graphs

Published online by Cambridge University Press:  07 June 2006

W. DUCKWORTH
Affiliation:
Department of Computing, Macquarie University Sydney, NSW 2109, Australia (e-mail: billy@ics.mq.edu.au)
N. C. WORMALD
Affiliation:
Department of Combinatorics & Optimization University of Waterloo, Waterloo ON, Canada N2L 3G1 (e-mail: nickwor@math.uwaterloo.ca)

Abstract

A dominating set $\cal D$ of a graph $G$ is a subset of $V(G)$ such that, for every vertex $v\in V(G)$, either in $v\in {\cal D}$ or there exists a vertex $u \in {\cal D}$ that is adjacent to $v$. We are interested in finding dominating sets of small cardinality. A dominating set $\cal I$ of a graph $G$ is said to be independent if no two vertices of ${\cal I}$ are connected by an edge of $G$. The size of a smallest independent dominating set of a graph $G$ is the independent domination number of $G$. In this paper we present upper bounds on the independent domination number of random regular graphs. This is achieved by analysing the performance of a randomized greedy algorithm on random regular graphs using differential equations.

Type
Paper
Copyright
2006 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)