首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Estimation of spectral gap for elliptic operators
Authors:Mu-Fa Chen  Feng-Yu Wang
Institution:Department of Mathematics, Beijing Normal University, Beijing 100875, P.R. China ; Department of Mathematics, Beijing Normal University, Beijing 100875, P.R. China
Abstract:A variational formula for the lower bound of the spectral gap of an elliptic operator is presented in the paper for the first time. The main known results are either recovered or improved. A large number of new examples with sharp estimate are illustrated. Moreover, as an application of the march coupling, the Poincaré inequality with respect to the absolute distribution of the process is also studied.

Keywords:Spectral gap  diffusion process  coupling
点击此处可从《Transactions of the American Mathematical Society》浏览原始摘要信息
点击此处可从《Transactions of the American Mathematical Society》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号