On Integral Operators of Generalized Wiener-Hopf-Type

A class of singular integral operators on the positive halfaxis, constituted by the one-sided HILBERT transformation, the WIENER -HOPF operators, the multiplicative convolution operators, and some multiplication operators, generated by continuous functions, are studied with BANACH algebra methods. With the help of symbol functions the FREDHOLM operators wil be characterized. Moreover one gets information about an index formula and FREDHOLM inverses.