학술저널
JOINT WEAK SUBNORMALITY OF OPERATORS
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 21, No. 2
-
2008.06287 - 292 (6 pages)
- 0
We introduce jointly weak subnormal operators. It is shown that if T = (T1, T2) is subnormal then T is weakly subnormal and if f T = (T1, T2) is weakly subnormal then T is hyponormal. We discuss the flatness of weak subnormal operators.
1. Introduction
2. Weak subnormality
3. Flatness
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