Some Problems of Qualitative Researches on Ultrahyperbolic Equations  

超双曲型方程定性研究的一些问题

作　　者：凌岭[1] 

机构地区：[1]西北大学数学系

出　　处：《Chinese Quarterly Journal of Mathematics》1990年第1期38-46,共9页数学季刊（英文版）

基　　金：中国科学院科学基金资助的课题

摘　　要：The prensent paper is a resume in the qualitative researches of the ultrahyperbolic equation,it involves a new proof of Asgeirsson's mean value theorem,extensions of mean value theorem,non-analyticity of the generalized potential solution,extensionality of solution,boundary problems and the elementary solution. Especially,we suggest to study ultrahyperbolie equation by means of the elementary solution,which is a natural way.

关 键 词：超双曲型方程 定性研究 中量定理 广义势解 解 拓展性 境界值 基本解 非解析性 

分 类 号：O175.27[理学—数学]