R
Roger A. Horn
Researcher at University of Utah
Publications - 116
Citations - 43480
Roger A. Horn is an academic researcher from University of Utah. The author has contributed to research in topics: Matrix (mathematics) & Canonical form. The author has an hindex of 32, co-authored 116 publications receiving 41610 citations. Previous affiliations of Roger A. Horn include Johns Hopkins University & Stanford University.
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Book ChapterDOI
Topics in matrix analysis: The field of values
Roger A. Horn,Charles R. Johnson +1 more
Journal ArticleDOI
Canonical forms for normal matrices that commute with their complex conjugate
TL;DR: In this article, the authors consider the class of normal complex matrices that commute with their complex conjugate and show that such matrices are real orthogonally similar to a canonical direct sum of 1-by-1 and certain 2-by2 matrices.
Journal ArticleDOI
Two applications of a bound on the Hadamard product with a Cauchy matrix
Roger A. Horn,Fuad Kittaneh +1 more
TL;DR: In this paper, the Hadamard multiplier operator of Cauchy t ype was shown to have a general perturbation bound on the positive semideenite factor.
Journal ArticleDOI
Tridiagonal canonical matrices of bilinear or sesquilinear forms and of pairs of symmetric, skew-symmetric, or Hermitian forms
TL;DR: Tridiagonal canonical forms of square matrices under congruence or *congruence are given over an algebraically closed field of characteristic different from 2 in this paper, where Hermitian matrices are also considered.