Orthogonality to matrix subspaces, and a distance formula

A Course in Functional Analysis.

T. W. Gamelin, John B. Conway · American Mathematical Monthly · 1986 · 2.3K citations

Measure Theory, Linear Operator, Hilbert Spaces +5

Characterization of the subdifferential of some matrix norms

G. A. Watson · Linear Algebra and its Applications · 1992 · 383 citations

Norm (Mathematics), Matrix Norms, Matrix Theory +2

Orthogonality of matrices and some distance problems

Rajendra Bhatia, Peter Šemrl · Linear Algebra and its Applications · 1999 · 146 citations

Matrix Method, Distance Problems, Matrix Theory +2

Characterization of Birkhoff–James orthogonality

Tirthankar Bhattacharyya, Priyanka Grover · Journal of Mathematical Analysis and Applications · 2013 · 60 citations

Spectral Theory, Engineering, Orthogonal Polynomial +2

Variance bounds, with an application to norm bounds for commutators

Koenraad M. R. Audenaert · Linear Algebra and its Applications · 2009 · 56 citations

Spectral Theory, Variance Bounds, Engineering +5