M-quasi-hyponormal composition operators
A necessary and sufficient condition is obtained for M-quasi-hyponormal composition operators. It has also been proved that the class of M-quasi- hyponormal composition operators coincides with the class of m-paranormal composition operators. Existence of M-hyponormal composition operators which are not hyponormal: and M-quasi-hyponormal composition operators which are not M-hyponormal and quasi-hyponormal are also shown.
M-hyponormal composition operators which are not hyponormal
M-quasi-hyponormal composition operators which are not M- hyponormal and quasi-hyponormal
scientific article; zbMATH DE number 4030296