Boundary Limits for Bounded Quasiregular Mappings
Boundary Limits for Bounded Quasiregular Mappings
复制标题
有界拟正则映射的边界极限
DOI:
10.1007/s12220-009-9073-z
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发表时间:
2005
影响因子:
1.1
通讯作者:
B. Li
中科院分区:
文献类型:
--
作者:
E. Villamor;B. Li
In this paper we establish results on the existence of nontangential limits for weighted-harmonic functions in the weighted Sobolev space, for someq>1 andwin the MuckenhouptAqclass, whereis the unit ball in. These results generalize the ones in Sect. 3 of Koskela et al., Trans. Am. Math. Soc.348(2), 755–766, 1996, where the weight was identically equal to one. Weighted-harmonic functions are weak solutions of the partial differential equationwherefor some fixedq∈(1,∞), where 0<α≤β<∞, andw(x) is aq-admissible weight as in Chap. 1 of Heinonen et al., Nonlinear Potential Theory, 2006.Later, we apply these results to improve on results of Koskela et al., Trans. Am. Math. Soc.348(2), 755–766, 1996 and Martio and Srebro, Math. Scand.85, 49–70, 1999 on the existence of radial limits for bounded quasiregular mappings in the unit ball ofwith some growth restriction on their multiplicity function.