M-quasi-hyponormal composition operators (Q1096150)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: M-quasi-hyponormal composition operators |
scientific article; zbMATH DE number 4030296
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | M-quasi-hyponormal composition operators |
scientific article; zbMATH DE number 4030296 |
Statements
M-quasi-hyponormal composition operators (English)
0 references
1987
0 references
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.
0 references
composition operators
0 references
M-hyponormal composition operators which are not hyponormal
0 references
M-quasi-hyponormal composition operators which are not M- hyponormal and quasi-hyponormal
0 references
