Corrigendum of a Theorem on New Upper Bounds for the <i>α</i>-Indices. Comment on Lenes et al. New Bounds for the <i>α</i>-Indices of Graphs. <i>Mathematics</i> 2020, <i>8</i>, 1668

Abstract

We give a family of counterexamples of a theorem on a new upper bound for the α-indices of graphs in the paper that is mentioned in the title. We also provide a new upper bound for corrigendum.

Keywords

• nonnegative matrix
• graph
• index
• α-index