Asghar Bahmani

activity

20152019

most citedGraph reduction techniques and the multiplicity of the Laplacian eigenvalues

4 citations · 4 across the 5 of their papers we have counts for

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Showing 2018Show all

2 papers · 1 filter

math.CO2018

A counterexample to a conjecture of Wang and Hou on signed graphs

Asghar Bahmani

We give a counterexample to a conjecture of Wang and Hou related with the sum of the $k$ largest Laplacian eigenvalues of signed graphs.

math.CO2018

Convex functions on graphs: Sum of the eigenvalues

Asghar Bahmani

Let $G$ be a simple graph with the Laplacian matrix $L (G)$ and let $e (G)$ be the number of edges of $G$ . A conjecture by Brouwer and a conjecture by Grone and Merris state that the…