On matrix approximation
Author: Shmuel Friedland
Journal: Proc. Amer. Math. Soc. 51 (1975), 41-43
MSC: Primary 65F35; Secondary 15A60, 41A65
MathSciNet review: 0371052
Abstract: In this paper we give an algebraic characterization of the best approximants to a given matrix from a real line spanned by a matrix . The distance is taken to be the spectral norm of .
Keywords: Matrix approximation, spectral norm, polynomial equations, the greatest common divisor, discriminant
Article copyright: © Copyright 1975 American Mathematical Society