On a class of lambda-hyponormal operators

Y. Estaremi, M. S. Al Ghafri, and S. Shamsigamchi

In this paper we define $\hat{I}»$-hyponormal operators on an infinite dimensional Hilbert space $\mathcal{H}$ and find a class of $\hat{I}»$-hyponormal operators that can not be hypercyclic.…