期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：2010
卷号：2010
DOI：10.1155/2010/191858
出版社：Hindawi Publishing Corporation
摘要：We show that the equivalence of the Apollonian metric
and its inner metric remains unchanged by the removal of a point from the
domain. For this we need to assume that the complement of the domain is not
contained in a hyperplane. This improves a result of the authors wherein the
same conclusion was reached under the stronger assumption that the domain
contains an exterior point.
