L. Gemignani

activity

20112024

most citedA CMV--based eigensolver for companion matrices

15 citations · 40 across the 17 of their papers we have counts for

collaborators

Showing 2013Show all

2 papers · 1 filter

math.NA2013★ 5 cited

Compression of unitary rank--structured matrices to CMV-like shape with an application to polynomial rootfinding

Roberto Bevilacqua, Gianna M. Del Corso, Luca Gemignani

This paper is concerned with the reduction of a unitary matrix U to CMV-like shape. A Lanczos--type algorithm is presented which carries out the reduction by computing the block tr…

math.NA2013★ 2 cited

Block Tridiagonal Reduction of Perturbed Normal and Rank Structured Matrices

Roberto Bevilacqua, Gianna M. Del Corso, Luca Gemignani

It is well known that if a matrix $A \in C^{n \times n}$ solves the matrix equation $f (A, A^{H}) = 0$ , where $f (x, y)$ is a linear bivariate polynomial, then $A$ is normal; $A$ and…