Shashanka Ubaru, Lior Horesh, et al.
Journal of Biomedical Informatics
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.
Shashanka Ubaru, Lior Horesh, et al.
Journal of Biomedical Informatics
George Markowsky
J. Math. Anal. Appl.
Minghong Fang, Zifan Zhang, et al.
CCS 2024
Zhihua Xiong, Yixin Xu, et al.
International Journal of Modelling, Identification and Control