摘要
本文考虑一类中立型泛函偏微分方程的边值问题。我们的主要工具是平均技巧，利用有关的泛函微分不等式来建立这类边值问题解的振动准则。
in this paper we consider a class of boundary value problems of functionalpartial differential equations of the neutral type. The principal tool is an averagingtechnique which enables one to establish such oscillation criteria in terms of relatedfunctional differential inequalities.
关键词
偏微分方程
边值问题
振动准则
Functional partial differential eqations, boundary value problems,oscillationcriteria.
