# On a Generalization of Quasiposinormal Operators

CJM Vol. 5 (December 2013), pp. 11 – 22.

Author(s):

Abstract:

Paper describes some properties for the operators $A$ on a Hilbert space $\mathcal{H}$ satisfying $(A^*A)^k \le c^2A^{*k}A^k$ for some $c > 0, k \ge 2$ and also presents some characterizations for the composition operators and the weighted composition operators on the Hilbert space $L^2$ to be of this type.

2000 Mathematics Subject Classification:

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