F. Odeh, I. Tadjbakhsh
Archive for Rational Mechanics and Analysis
The problem of factoring positive operators into an "outer" factor and its adjoint has been studied, and its application to the theory of non-stationary random processes is discussed. This problem is an extension of the classical one of factoring positive matrix-valued functions defined on the unit circle of the complex plane into similar factors. © 1971.
F. Odeh, I. Tadjbakhsh
Archive for Rational Mechanics and Analysis
Leo Liberti, James Ostrowski
Journal of Global Optimization
Satoshi Hada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Daniel J. Costello Jr., Pierre R. Chevillat, et al.
ISIT 1997