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01/31/2023
Structure-preserving eigenvalue modification of symplectic matrices and matrix pencils
A famous theorem by R. Brauer shows how to modify a single eigenvalue of...
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09/03/2020
A rational Even-IRA algorithm for the solution of T-even polynomial eigenvalue problems
In this work we present a rational Krylov subspace method for solving re...
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07/01/2020
Density of diagonalizable matrices in sets of structured matrices defined from indefinite scalar products
For an (indefinite) scalar product [x,y]_B = x^HBy for B= ± B^H ∈ Gl_n(ℂ...
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06/27/2020
Generic canonical forms for perplectic and symplectic normal matrices
Let B be some invertible Hermitian or skew-Hermitian matrix. A matrix A ...
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10/28/2019
On skew-Hamiltonian Matrices and their Krylov-Lagrangian Subspaces
It is a well-known fact that the Krylov space K_j(H,x) generated by a sk...
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10/27/2019
