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Geometric multiplicity margin for a submatrix

By José Marı́a González de Durana and Juan-Miguel Gracia

Abstract

AbstractLet G be a square complex matrix with less than k nonconstant invariant factors. We find a complex matrix that gives an optimal approximation to G among all possible matrices that have more than or equal to k invariant factors, obtained by varying only the entries of a bottom right submatrix of G

Publisher: Elsevier Science Inc.
Year: 2002
DOI identifier: 10.1016/S0024-3795(01)00612-7
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