Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4614590 | Journal of Mathematical Analysis and Applications | 2016 | 13 Pages |
Abstract
It is shown that for any positive integer n there exists a subnormal weighted shift on a directed tree whose n th power is closed and densely defined while its (n+1)(n+1)th power has trivial domain. Similar result for composition operators in L2L2-spaces is established.
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis
Authors
Piotr Budzyński, Zenon Jan Jabłoński, Il Bong Jung, Jan Stochel,