Abstract
For a certain class of composition operators Cφ on the Hardy space H2(D) with multivalent symbol φ, we verify the conjecture due to Cowen and MacCluer [3], which explains the presence of circular symmetry of the spectrum in this case.
| Original language | English |
|---|---|
| Pages (from-to) | 281-293 |
| Journal | Far East Journal of Mathematical Sciences |
| Issue number | 35 |
| State | Published - 2009 |