Publisher : Department of Mathematics, Kyungpook National University
DOI : 10.5666/KMJ.2008.48.4.721
Title & Authors
On the Flatness of Semi-Cubically Hyponormal Weighted Shifts Li, Chunji; Ahn, Ji-Hye;
Let be a weighted shift with positive weight sequence . The semi-cubical hyponormality of is introduced and some flatness properties of are discussed in this note. In particular, it is proved that if for some , for all .