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Quasi-posinormal operators | ||
| Baghdad Science Journal | ||
| Article 1, Volume 7, Issue 3, 2010, Pages 1282-1287 | ||
| Author | ||
| Sadiq Naji Nassir | ||
| Abstract | ||
| In this paper, we introduce a class of operators on a Hilbert space namely quasi-posinormal operators that contain properly the classes of normal operator, hyponormal operators, M–hyponormal operators, dominant operators and posinormal operators . We study some basic properties of these operators .Also we are looking at the relationship between invertibility operator and quasi-posinormal operator . | ||
| Keywords | ||
| posinormal operators; Hyponormal operators; hyponormal operators; dominant operators | ||
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