학술저널
OPERATORS WITH RANK ONE SELFCOMMUTATORS
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 23, No. 1
-
2010.03163 - 168 (6 pages)
- 2
In this paper it is shown that if [T, T] is of rank one and ker [T, T] is invariant for T, then T is quasinormal. Thus, we can know that the hyponormal condition is superfluous in the Morrel’s theorem.
1. Introduction
2. The main result
References
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