论文标题
平均值属性属性（调查）
Inverse mean value properties (a survey)
论文作者
论文摘要
谐波和泛术函数的几种平均值身份以及相应的逆性质进行了审查。后者通过这些功能分析了球，环和条的表征。
Several mean value identities for harmonic and panharmonic functions are reviewed along with the corresponding inverse properties. The latter characterize balls, annuli and strips analytically via these functions.
