DISTORTION OF AREA AND DIMENSION UNDER QUASI-CONFORMAL MAPPINGS IN THE PLANE

被引:3
作者
ASTALA, K
机构
[1] Department of Mathematics, University of Helsinki, SF-00014 Helsinki
关键词
D O I
10.1073/pnas.90.24.11958
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We find the exact estimates for the distortion of area and Hausdorff dimension under a K-quasiconformal mapping of the complex plane. This solves also the problem of finding the precise bound p(K) of the exponents p such that for each planar K-quasiconformal mapping f the Jacobian J(f) is locally p-integrable; it follows that p(K) = 2K/(K - 1). Further consequences include among others the regularity and removability results for quasiregular mappings and sharp estimates for the complex Hilbert transform.
引用
收藏
页码:11958 / 11959
页数:2
相关论文
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