Invertibility of matrix Wiener--Hopf plus Hankel operators with symbols producing a positive numerical range
The paper investigates the problem of invertibility (two-sided and one-sided) of matrix Wiener--Hopf plus Hankel operators generated by some almost periodic functions. Invertibility conditions are formulated in terms of the mean motion of some almost periodic function defined by the operator under consideration.
scientific article; zbMATH DE number 5500727
scientific article