Stephen C. Locke
Graph theory and algorithms.
Bela Bollobas
Functional analysis, combinatorics and graph theory.
Tom Whaley
Formal development of programs, Steinhaus graphs, parallel computing.
David Eppstein
Graph algorithms and computational geometry.
Ashay Dharwadker
Algebra, topology, graph theory and theoretical computer science.
Ignacio M Pelayo
Connectivity, distance in graphs and extremal problems.
Gary Chartrand
Graph structures, distance in graphs and domination.
Keith Edwards
Harmonious colourings and achromatic number.
Gordon Royle
Algebraic graph theory.
Dan Archdeacon
Topological graph theory, combinatorics, theoretical computer science.
Hubert de Fraysseix
Topological graph theory and combinatorics.
Rich Lundgren
Applied graph theory and combinatorial matrix theory.
David Penman
Random graphs, computational combinatorics.
Erdos Number Project
List of people with Erdos number at most 2.
Erich Prisner
Graph theory, algorithms, computational geometry and cellular automata.