On the k-independence number of graphs

时间:2019-11-19

Title: On the k-independence number of graphs

SpeakerAida Abiad, Maastricht University 

Time2019-11-21   16:00-17:00

PlaceRoom 1418, School of Mathematical Sciences, Management Research Building, East Campus

Abstract

In this talk I shall present recent spectral bounds on the k-independence number of a graph, which is  the  maximum  size  of  a  set  of  vertices  at  pairwise  distance  greater  than  k.  The  previous  bounds known in the literature follow as a corollary of our main results. We show that for most cases our bounds outperform the previous known bounds. Some infinite families of graphs where the bounds are tight are also presented. This is joint work with G. Coutinho and M.A. Fiol.

 

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