PROXIMITY GRAPHS: E, δ, Δ, χ AND ω

Author:

BOSE PROSENJIT1,DUJMOVIĆ VIDA1,HURTADO FERRAN2,IACONO JOHN3,LANGERMAN STEFAN4,MEIJER HENK5,SACRISTÁN VERA6,SAUMELL MARIA7,WOOD DAVID R.8

Affiliation:

1. School of Computer Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada

2. Departament de Matemàtica Aplicada II, Universitat Politècnica de Catalunya Edifici Omega, Campus Nord, Jordi Girona 1-3, 08034 Barcelona, Spain

3. Department of Computer Science and Engineering, Polytechnic Institute of New York University, 5 MetroTech Center, Brooklyn, NY 11201, USA

4. Maître de recherches du F.R.S.-FNRS. Département d'Informatique, Université Libre de Bruxelles, ULB CP212, 50 Av. F.D. Roosevelt, 1050 Brussels, Belgium

5. Science Department, Roosevelt Academy, P. O. Box 94, NL-4330 AB Middelburg, The Netherlands

6. Departament de Matemàtica Aplicada II, Universitat Politècnica de Catalunya, Edifici Omega, Campus Nord, Jordi Girona 1-3, 08034 Barcelona, Spain

7. Department of Applied Mathematics, Charles University Malostranské nám. 25, 118 00 Praha 1, Czech Republic

8. Department of Mathematics and Statistics, The University of Melbourne, Australia

Abstract

Graph-theoretic properties of certain proximity graphs defined on planar point sets are investigated. We first consider some of the most common proximity graphs of the family of the Delaunay graph, and study their number of edges, minimum and maximum degree, clique number, and chromatic number. In the second part of the paper we focus on the higher order versions of some of these graphs and give bounds on the same parameters.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Computational Mathematics,Computational Theory and Mathematics,Geometry and Topology,Theoretical Computer Science

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