Conformally invariant complete metrics

被引:4
|
作者
Sugawa, Toshiyuki [1 ]
Vuorinen, Matti [2 ]
Zhang, Tanran [3 ]
机构
[1] Tohoku Univ, Grad Sch Informat Sci, Aoba ku, Sendai 9808579, Japan
[2] Univ Turku, Dept Math & Stat, FI-20014 Turku, Finland
[3] Soochow Univ, Dept Math, 1 Shizi St, Suzhou 215006, Peoples R China
关键词
30C35; 30C55; UNIFORMLY PERFECT SETS; CAPACITIES; DOMAINS;
D O I
10.1017/S030500412200024X
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For a domain Gin the one-point compactification R-n = R-n boolean OR {infinity} of R-n, n? 2, we characterise the completeness of the modulus metric mu(G )in terms of a potential-theoretic thickness condition of 8G, Martio's M-condition [35]. Next, we prove that 8G is uniformly perfect if and only if mu(G) admits a minorant in terms of a Mobius invariant metric. Several applications to quasiconformal maps are given.
引用
收藏
页码:273 / 300
页数:28
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