16 citations · 48 across the 45 of their papers we have counts for
7 papers · 1 filter
On role extraction for digraphs via neighbourhood pattern similarity
Giovanni Barbarino, Vanni Noferini, Paul Van Dooren
We analyse the recovery of different roles in a network modelled by a directed graph, based on the so-called Neighbourhood Pattern Similarity approach. Our analysis uses results fr…
Dynamic Katz and Related Network Measures
Francesca Arrigo, Desmond J. Higham, Vanni Noferini +1
We study walk-based centrality measures for time-ordered network sequences. For the case of standard dynamic walk-counting, we show how to derive and compute centrality measures in…
On computing root polynomials and minimal bases of matrix pencils
Vanni Noferini, Paul Van Dooren
We revisit the notion of root polynomials, thoroughly studied in [F. Dopico and V. Noferini, Root polynomials and their role in the theory of matrix polynomials, Linear Algebra App…
Cyclically presented groups as Labelled Oriented Graph groups
Vanni Noferini, Gerald Williams
We use results concerning the Smith forms of circulant matrices to identify when cyclically presented groups have free abelianisation and so can be Labelled Oriented Graph (LOG) gr…
When can forward stable algorithms be composed stably?
Carlos Beltrán, Vanni Noferini, Nick Vannieuwenhoven
We state some widely satisfied hypotheses, depending only on two functions and , under which the composition of a stable algorithm for and a stable algorithm for is…
Tropical Laurent series, their tropical roots, and localization results for the eigenvalues of nonlinear matrix functions
Gian Maria Negri Porzio, Vanni Noferini, Leonardo Robol
Tropical roots of tropical polynomials have been previously studied and used to localize roots of classical polynomials and eigenvalues of matrix polynomials. We extend the theory…