Conference paper
Lung function measurement by optical contouring
A.R. Gourlay, G. Kaye, et al.
Proceedings of SPIE 1989
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.
A.R. Gourlay, G. Kaye, et al.
Proceedings of SPIE 1989
Nimrod Megiddo
Journal of Symbolic Computation
James Lee Hafner
Journal of Number Theory
Arnon Amir, Michael Lindenbaum
IEEE Transactions on Pattern Analysis and Machine Intelligence