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math.NA2014★ 6 cited
Differential equations for real-structured (and unstructured) defectivity measures
Paolo Buttà, Nicola Guglielmi, Manuela Manetta +1
Let be either a complex or real matrix with all distinct eigenvalues. We propose a new method for the computation of both the unstructured and the real-structured (if the matri…
math.NA2012★ 6 cited
Structured conditioning of Hamiltonian eigenvalue problems
Paolo Buttà, Silvia Noschese
We discuss the effect of structure-preserving perturbations on complex or real Hamiltonian eigenproblems and characterize the structured worst-case effect perturbations. We derive…