Titlebook: Sparse Estimation with Math and Python; 100 Exercises for Bu Joe Suzuki Textbook 2021 The Editor(s) (if applicable) and The Author(s), unde

debacle

,On the Bessmertnyĭ Class of Homogeneous Positive Holomorphic Functions on a Product of Matrix Halfp to the case of a product of open right matrix halfplanes. Several equivalent characterizations of this generalized Bessmertnyĭ class are presented. In particular, its intimate connection with the Agler-Schur class of holomorphic contractive operator-valued functions on the product of matrix unit disks is established.