摘要
研究常系数线性偏微分算子P(D)的右逆对于讨论其解的性质具有非常重要的作用,而Phragmén-Lindelf条件提供了研究常系数线性偏微分算子右逆存在性的一种方法.主要讨论了一种情形下Phragmén-Lindelf条件关于两个独立变量的扰动情况,给出了Phragmén-Lindelf条件在这种情形下扰动的一个必要条件.
The research about the right inverse of linear partial differential operators P(D) with constant coefficient is very important for studying the properties of the solutions.The Phragmén-Lindelf condition has given a method to study the existence of right inverse of linear partial differential equations with constant coefficient.The perturbations for Phragmén-Lindelf condition with two independent variates in some case was mainly discussed,and a necessary condition of pertu bations of Phragmén-Lindelf condition in the case was given.
出处
《中北大学学报(自然科学版)》
CAS
北大核心
2011年第1期92-95,共4页
Journal of North University of China(Natural Science Edition)