Operators and Matrices · Volume 9, Issue 3

Closest southeast submatrix that makes multiple a defective eigenvalue of the northwest one

09-37 Pages 619-636 DOI 10.7153/oam-09-37

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Authors

Gorka Armentia Juan-Miguel Gracia Francisco E. Velasco

Keywords

nearest matrix multiple eigenvalues controllable observable Moore-Penrose surjective mapping theorem nonsemisimple

Subject classes

15A18 15A60 15A09 93B10