摘要
本文获得了一类具重特征微分算子的局部可解性,证明了这类算子的局部可解性没有离散现象,所用的方法是Carelman估计和算子链方法。
In this paper we have obtained the iocal solubility of the operator with double characteristics and proved that the local solubility has no discrete phenomena.The carelman estimate and concatenation method is used.
出处
《西北大学学报(自然科学版)》
CAS
CSCD
1991年第3期23-26,共4页
Journal of Northwest University(Natural Science Edition)
关键词
偏微分算子
局部可解性
重特征
Partial differential operator
Local solubility
Discrete Phenomena
Double characteristics