Article ID Journal Published Year Pages File Type
5778928 Indagationes Mathematicae 2017 17 Pages PDF
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.
Related Topics
Physical Sciences and Engineering Mathematics Mathematics (General)
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