| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6418674 | Journal of Mathematical Analysis and Applications | 2013 | 8 Pages |
Abstract
We characterize positive quadratic hyponormality of the weighted shift Wα(x) associated to the weight sequence α(x):1,1,x,(u,v,w)⧠with Stampfli recursive tail, and produce an interval in x with non-empty interior in the positive real line for quadratic hyponormality but not positive quadratic hyponormality for such a shift.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis
Authors
George R. Exner, Il Bong Jung, Mi Ryeong Lee, Sun Hyun Park,