Wiener-Hopf factorization for a class of oscillatory symbols
Two classes of oscillatory \(2\times 2\) matrix-valued functions are considered. Conditions for existence of canonical generalized factorization are established. Explicit formulas are derived for the factors, showing in particular that only one of the columns needs to be calculated. As a consequence a byproduct related to the corona problem is obtained.
scientific article; zbMATH DE number 1484693