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Bounds on the bisection width for random d -regular graphs
Authors:J Díaz  MJ Serna  NC Wormald
Affiliation:1. Dept. Llenguatges i Sistemes, Universitat Politecnica de Catalunya, Jordi Girona Salgado 1–3, 08034 Barcelona, Spain;2. Dept. Combinatorics and Optimization, University of Waterloo, Canada N2L 3G1
Abstract:In this paper we provide an explicit way to compute asymptotically almost sure upper bounds on the bisection width of random dd-regular graphs, for any value of dd. The upper bounds are obtained from the analysis of the performance of a randomized greedy algorithm to find bisections of dd-regular graphs. We provide bounds for 5≤d≤125d12. We also give empirical values of the size of the bisection found by the algorithm for some small values of dd and compare them with numerical approximations of our theoretical bounds. Our analysis also gives asymptotic lower bounds for the size of the maximum bisection.
Keywords:Bisection width  Random regular graphs
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