Matthew A Grayson
Journal of Complexity
A positive definite symmetric matrix is called a Stieltjes matrix provided that all its off diagonal elements are nonpositive. We characterize functions which preserve the class of Stieltjes matrices. © 1979.
Matthew A Grayson
Journal of Complexity
Andrew Skumanich
SPIE Optics Quebec 1993
Arnon Amir, Michael Lindenbaum
IEEE Transactions on Pattern Analysis and Machine Intelligence
Tong Zhang, G.H. Golub, et al.
Linear Algebra and Its Applications