An Estimate of the Essential Norm of a Composition Operator from to in the Unit Ball
Let be the unit ball of and a holomorphic self-map of Let , , , , and let be the composition operator between the space and -Bloch space induced by . This paper gives an estimate of the essential norm of . As a consequence, a necessary and sufficient condition for the composition operator to be comp...
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Veröffentlicht in: | Journal of inequalities and applications 2010-03, Vol.2010 (1), p.132970 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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Zusammenfassung: | Let
be the unit ball of
and
a holomorphic self-map of
Let
,
,
,
, and let
be the composition operator between the space
and
-Bloch space
induced by
. This paper gives an estimate of the essential norm of
. As a consequence, a necessary and sufficient condition for the composition operator
to be compact from
to
is obtained. |
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ISSN: | 1029-242X 1029-242X |
DOI: | 10.1155/2010/132970 |