Julian Schuhmacher, Marco Ballarin, et al.
PRX Quantum
Paper
Functions that preserve families of positive semidefinite matrices
Abstract
We study various notions of multivariate functions which map families of positive semidefinite matrices or of conditionally positive semidefinite matrices into matrices of the same type. © 1995.
Related
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Fernando Martinez, Juntao Chen, et al.
AAAI 2025
Satoshi Hada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences