2 papers
math.FA2023
Wiener-Hopf indices of unimodular functions on the unit circle, revisited
A. E. Frazho, M. A. Kaashoek, A. C. M. Ran +1
Inspired by the paper of Groenewald, Kaashoek and Ran (Wiener-Hopf indices of unitary functions on the unit circle in terms of realizations and related results on Toeplitz operator…
math.FA2022
Wiener-Hopf factorization indices of rational matrix functions with respect to the unit circle in terms of realization
G. J. Groenewald, M. A. Kaashoek, A. C. M. Ran
As in the paper [G. Groenewald, M.A. Kaashoek, A.C.M. Ran, Wiener-Hopf indices of unitary functions on the unit circle in terms of realizations and related results on Toeplitz oper…