修正Helmholtz方程解的均值性质及相关问题（综述）
Mean value properties of solutions to the modified Helmholtz equation and related topics (a survey)
摘要：
综述了修正Helmholtz方程解的最新结果，即各种均值性质及其推论，这些性质的逆解和逆解，以及这些解与调和函数之间的关系。
英文摘要：
Recent results concerning solutions of the modified Helmholtz equation are reviewed; namely, various mean value properties and their corollaries, converse and inverse of these properties, and relations between these solutions and harmonic functions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
