Norms of Inverses, Spectra, and Pseudospectra of Large Truncated Wiener-Hopf Operators and

摘要: This paper is concerned with Wiener-Hopf integral operators on Lp and Toeplitz (or matrices) lp. The symbols of the op- erators are assumed to be continuous matrix functions. It well known that invertibility operator itself its associated imply all suciently large truncations uniform boundedness norms their inverses. Quantitative statements, such as results limit inverses, can proved in case p = 2 by means C-algebra techniques. In this we replace methods more direct arguments determine inverses thus also pseudospectra general p.