Hostname: page-component-76fb5796d-5g6vh Total loading time: 0 Render date: 2024-04-30T01:24:51.974Z Has data issue: false hasContentIssue false

Derivative-free characterizations of Qk spaces

Published online by Cambridge University Press:  09 April 2009

Hasi Wulan
Affiliation:
Department of Mathematics Shantou UniversityShantouChina e-mail: wulan@stu.edu.cn
Kehe Zhu
Affiliation:
Department of Mathematics SUNY Albany, NY 12222USA and Department of Mathematics Shantou UniveristyShantouChina e-mail: kzhu@math.albany.edu
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We give two charaterizations of the Möbius invariant QK spaces, one in terms of a double integral and the other in terms of the mean oscillation in the Bergman metric. Both charaterizations avoid the use of derivatives. Our results are new even in the case of Qp.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 2007

References

[1]Axler, S., ‘The Bergman spaces, the Bloch space, and commutators of multiplication operators’, Duke Math. J. 53 (1986), 315332.CrossRefGoogle Scholar
[2]Essén, M. and Wulan, H., ‘On analytic and meromorphic functions and spaces of Qk type’, Illinois J. Math. 46 (2002), 12331258.CrossRefGoogle Scholar
[3]Essén, M., Wulan, H. and Xiao, J., ‘Function-theoretic aspects of Möbius invariant Qk spaces’, J. Funct. Anal. 230 (2006), 78115.CrossRefGoogle Scholar
[4]Garnett, J., Bounded analytic functions (Academic Press, New York, 1982).Google Scholar
[5]Hedenmalm, H., Korenblum, B. and Zhu, K., Theory of Bergman spaces (Springer, New York, 2000).CrossRefGoogle Scholar
[6]Korenblum, B. and Zhu, K., ‘Complemented invariant subspaces in Bergman spaces’, J. London Math. Soc. (2) 71 (2005), 467480.CrossRefGoogle Scholar
[7]Wulan, H. and Wu, P., ‘Charaterization of QT spaces’, J. Math. Anal. Appl. 254 (2001), 484497.CrossRefGoogle Scholar
[8]Wulan, H. and Zhu, K., ‘Qk spaces via higher order derivatives’, Rocky Mountain J. Math. (to appear).Google Scholar
[9]Xiao, J., Holomorphic Q classes, Lecture Notes in Mathematics 1767 (Springer, Berlin, 2001).CrossRefGoogle Scholar
[10]Zhu, K., Operator theory in function spaces (Marcel Dekker, New York, 1990).Google Scholar
[11]Zhu, K., ‘Schatten class Hankel operators on the Bergman space of the unit ball’, Amer. J. Math. 113 (1991), 147167.CrossRefGoogle Scholar