GLOBAL APPROXIMATION IN HARMONIC SPACES

被引:0
|
作者
GARDINER, RSJ [1 ]
GOLDSTEIN, M [1 ]
GOWRISANKARAN, K [1 ]
机构
[1] MCGILL UNIV,DEPT MATH & STAT,MONTREAL H3A 2K6,QUEBEC,CANADA
关键词
D O I
暂无
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper characterizes, in terms of thinness, compact sets K in a suitable harmonic space OMEGA which have the following property: functions which are harmonic (resp. continuous and superharmonic) on a neighbourhood of K can be uniformly approximated on K by functions which are harmonic (resp. continuous and superharmonic) on OMEGA. The corresponding problems of approximating functions which are continuous on K and harmonic (resp. superharmonic) on the interior K are also solved.
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页码:213 / 221
页数:9
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