Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5778928 | Indagationes Mathematicae | 2017 | 17 Pages |
Abstract
We provide new formulas for the Wiener-Hopf factorization indices of a rational matrix function R which has neither poles nor zeros on the unit circle. In addition, we recover recent results on the Fredholm characteristics of the Toeplitz operator with symbol R via the method of matricial coupling. Furthermore, we present an alternative formula for the index in terms of the Fourier coefficients of R.
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Physical Sciences and Engineering
Mathematics
Mathematics (General)
Authors
G.J. Groenewald, M.A. Kaashoek, A.C.M. Ran,