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HARDY-LITTLEWOOD PROPERTY AND alpha-QUASIHYPERBOLIC METRIC
- Authors
- Kim, Ki Won; Ryu, Jeong Seog
- Issue Date
- 2020
- Publisher
- KOREAN MATHEMATICAL SOC
- Keywords
- Hardy-Littlewood property; quasiconformal mapping; quasihyperbolic metric
- Citation
- COMMUNICATIONS OF THE KOREAN MATHEMATICAL SOCIETY, v.35, no.1, pp.243 - 250
- Journal Title
- COMMUNICATIONS OF THE KOREAN MATHEMATICAL SOCIETY
- Volume
- 35
- Number
- 1
- Start Page
- 243
- End Page
- 250
- ISSN
- 1225-1763
- Abstract
- Hardy and Littlewood found a relation between the smoothness of the radial limit of an analytic function on the unit disk D subset of C and the growth of its derivative. It is reasonable to expect an analytic function to be smooth on the boundary if its derivative grows slowly, and conversely. Gehring and Martio showed this principle for uniform domains in R-2. Astala and Gehring proved quasiconformal analogue of this principle for uniform domains in R-n. We consider alpha-quasihyperbolic metric, k(D)(alpha) and we extend it to proper domains in R-n.
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