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.
Papers
More filters
Journal ArticleDOI
On moment sequences and renewal sequences
TL;DR: In this paper, the renewal equations associated with the three classical moment problems are investigated and the results include those of T. Kaluza and T. Köpcke, who showed that a moment sequence is a renewal sequence if and only if it is a HausdorR moment sequence.
Journal ArticleDOI
Infinitely divisible positive definite sequences
TL;DR: In this paper, it is shown that a sequence formed from a positive integer power of the terms of a positive definite sequence is always itself a Positive definite sequence, and the sequence of the title of a sequence of complex numbers is also a Positive Semidefinite sequence.
Journal ArticleDOI
On the Structure of Hermitian-Symmetric Inequalities
Carl H. FitzGerald,Roger A. Horn +1 more
Journal ArticleDOI
Misclassification problems in diagnosis-related groups: cystic fibrosis as an example
Susan D. Horn,Susan D. Horn,Roger A. Horn,Roger A. Horn,Phoebe D. Sharkey,Phoebe D. Sharkey,Robert J. Beall,Robert J. Beall,John S. Hoff,John S. Hoff,Beryl J. Rosenstein +10 more
TL;DR: Examination of discharge-abstract data from 14 cystic fibrosis centers in a comparison of resource-use requirements by patients with cystic Fibrosis and other patients in the same diagnosis-related group found the ratio between the costs and the lengths of stay was greater than the ratio for the two groups, reflecting the more intense use of resources by the patients.
Book ChapterDOI
Representations of quivers and mixed graphs
TL;DR: In this paper, the notion of quiver representations is extended to representations of mixed graphs, which permits one to study systems of linear mappings and bilinear or sesquilinear forms.