2 papers
math.CO2019
Rank-one perturbations of matrix pencils
Itziar Baragaña, Alicia Roca
We solve the problem of characterizing the Kronecker structure of a matrix pencil obtained by a rank-one perturbation of another matrix pencil. The results hold over arbitrary fiel…
math.AG2019
Fixed rank perturbations of regular matrix pencils
Itziar Baragaña, Alicia Roca
A characterization of the structure of a regular matrix pencil obtained by a bounded rank perturbation of another regular matrix pencil has been recently obtained. The result gener…