Mathematics, Department of
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Document Type
Article
Date of this Version
2016
Citation
Volume 341, Issue 3, March 2018, Pages 793-800
Abstract
Recently, Davies, Jenssen, Perkins, and Roberts gave a very nice proof of the result (due, in various parts, to Kahn, Galvin-Tetali, and Zhao) that the independence polynomial of a d-regular graph is maximized by disjoint copies of Kd,d. Their proof uses linear programming bounds on the distribution of a cleverly chosen random variable. In this paper, we use this method to give lower bounds on the independence polynomial of regular graphs. We also give new bounds on the number of independent sets in triangle-free regular graphs.
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Comments
Published in Discrete Mathematics
https://doi.org/10.1016/j.disc.2017.11.016