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20182025
most citedWeierstrass structure and eigenvalue placement of regular matrix pencils under low rank perturbations

12 citations · 14 across the 10 of their papers we have counts for

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math.RA2024

Isomorphisms between lattices of hyperinvariant subspaces

David Mingueza, M. Eulàlia Montoro, Alicia Roca

Given two nilpotent endomorphisms, we determine when their lattices of hyperinvariant subspaces are isomorphic. The study of the lattice of hyperinvariant subspaces can be reduced…

math.RA2024★ 12 cited

Weierstrass structure and eigenvalue placement of regular matrix pencils under low rank perturbations

Itziar Baragaña, Alicia Roca

We solve the problem of determining the Weierstrass structure of a regular matrix pencil obtained by a low rank perturbation of another regular matrix pencil. We apply the result t…