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math.NA2022
A defect-correction algorithm for quadratic matrix equations, with applications to quasi-Toeplitz matrices
Dario Bini, Beatrice Meini
A defect correction formula for quadratic matrix equations of the kind is presented. This formula, expressed by means of an invariant subspace of a suitable…
math.NA2022
An edge centrality measure based on the Kemeny constant
D. Altafini, D. A. Bini, V. Cutini +2
A new measure of the centrality of an edge in an undirected graph is introduced. It is based on the variation of the Kemeny constant of the graph after removing the…