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矩阵伪谱的新定位集及其在土壤生态系统的应用 被引量:1

New Localization Sets of the Pseudospectra for Matrices with Applications on the Soil Ecosystems
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摘要 本文研究矩阵伪谱的定位问题,给出了矩阵伪谱的两个新的定位集,证明所得定位集优于Embree和Trefethen(2001)文中的结果,并应用其对土壤生态系统的稳定性进行扰动分析. For localization of the pseudospectra for matrices,two new localization sets are presented,and proved that the localization sets are tighter than the results obtained by Embree and Trefethen(2001).We apply them to study the perturbation analysis of the stability for Soil ecosystems.
作者 吴智军 李朝迁 WU Zhijun;LI Chaoqian(School of Mathematics and Statistics,Yunnan University,Kunming 650504,China)
出处 《应用数学》 CSCD 北大核心 2021年第1期224-230,共7页 Mathematica Applicata
基金 国家自然科学基金(11601473,12061087) 云南省优青培育项目(2018YDJQ021)。
关键词 矩阵 伪谱定位集 土壤生态系统 稳定性 Matrix Pseudospectra localization Soil ecosystem Stability
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