摘要
本文介绍主特征值估计的两种通用方法,着重于两个侧面:来自黎曼几何的第一种方法如何应用于概率论;来自概率论的第二种方法如何应用于黎曼几何.此外,还将概述若干基本结果.
Two general methods for estimating the principal eigenvaues are ifltroduced in the paper. We show how the first method came from Riemannian geometry aPplies to probability theory and how the second one goes in the opposite way. The main results on the estimation are also surveyed.
出处
《数学进展》
CSCD
北大核心
1999年第5期385-392,共8页
Advances in Mathematics(China)
基金
国家自然科学基金
Qiushi Sci.& Tech.Found.
DPFIHE
MCSEC和MCMCAS的资助
关键词
主特征值
谱隙
对称型
Cheeger不等式
principal eigenvalue
spectral gap
symmetric form
Cheeger's inequality