A direct constructive proof is given for Pokrzywa's theorem on the closure of orbits of Kronecker canonical pencils under perturbation.
Mailybaev, Transformation to versal deformation s of matrices, Lin- ear Algebra Appl
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A constructive proof of Pokrzywa's theorem about perturbations of matrix pencils
A direct constructive proof is given for Pokrzywa's theorem on the closure of orbits of Kronecker canonical pencils under perturbation.