| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4664317 | Acta Mathematica Scientia | 2011 | 15 Pages |
Abstract
We find a lower bound for the essential norm of the difference of two composition operators acting on H2(BN) or A2s(BN) (s > −1). This result plays an important role in proving a necessary and sufficient condition for the difference of linear fractional composition operators to be compact, which answers a question posed by MacCluer and Weir in 2005.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematics (General)
