A Riemannian optimization method to compute the nearest singular pencil

Numerical computation of eigenvalues and eigenvectors of matrices (65F15) Numerical optimization and variational techniques (65K10) Eigenvalues, singular values, and eigenvectors (15A18) Numerical computation of determinants (65F40) Matrix pencils (15A22)

Cites Work

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Where is the nearest non-regular pencil?
Nearest $\Omega $-stable matrix via Riemannian optimization
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Nearest rank deficient matrix polynomials

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