Authors
Hasi Wulan
Publication date
2005/12
Journal
Acta Mathematica Sinica
Volume
21
Issue
6
Pages
1415-1424
Publisher
Springer-Verlag
Description
Suppose that φ is an analytic self-map of the unit disk Δ. We consider compactness of the composition operator C φ from the Bloch space ℬ into the spaces Q K defined by a nonnegative, nondecreasing function K(r) for 0 ≤ r < ∞. Our compactness condition depends only on ϕ which can be considered as a slight improvement of the known results. The compactness of C ϕ from the Dirichlet space $${\fancyscript D}$$ into the spaces Q K is also investigated.
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Scholar articles
H Wulan - Acta Mathematica Sinica, 2005