RESEARCH ANNOUNCEMENTS ON "UPPER BOUND ESTIMATES OF EIGENVALUES FOR HORMANDER OPERATORS ON NON-EQUIREGULAR SUB-RIEMANNIAN MANIFOLDS"  

作　　者：CHEN Hua CHEN Hong-ge LI Jin-ning 

机构地区：[1]School of Mathematics and Statistics,Wuhan University,Wuhan 430072,China [2]Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China

出　　处：《数学杂志》2022年第1期1-5,共5页Journal of Mathematics

基　　金：Supported by National Natural Science Foundation of China(11631011;11626251);China Postdoctoral Science Foundation(2021M703282)。

摘　　要：1 Introduction and Main Results For n≥2,let M be a n-dimensional connected smooth manifold.We take a fixed smooth measure on M with strictly positive density,and write dx as the measure when we integrate.Also,we simply denote the measure of a set E?M by|E|.

关 键 词：manifold. simply STRICTLY 

分 类 号：O186.12[理学—数学]