A short remark on graphs with two main eigenvalues

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摘要

We give a short proof of a conjecture on graphs with two main eigenvalues posed by Réti in [Applied Mathematics and Computation 344–345 (2019), 107–115].

论文关键词：Main eigenvalue,Graph complement,Number of walks

论文评审过程：Received 1 September 2019, Revised 15 October 2019, Accepted 20 October 2019, Available online 6 November 2019, Version of Record 2 December 2019.

论文官网地址：https://doi.org/10.1016/j.amc.2019.124858