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On positive solutions of the elliptic sine-Gordon equation 期刊论文
COMMUNICATIONS ON PURE AND APPLIED ANALYSIS, 2005, 卷号: 4, 期号: 2, 页码: 283-294
作者:  Ding, ZH;  Chen, G;  Li, SJ
收藏  |  浏览/下载：92/0  |  提交时间：2018/07/30
elliptic sine-Gordon equation  variational methods  positive solutions  
Multiple solutions and sign-changing solutions of a class of nonlinear elliptic equations with Neumann boundary condition 期刊论文
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2004, 卷号: 298, 期号: 1, 页码: 14-32
作者:  Li, C;  Li, SJ
收藏  |  浏览/下载：96/0  |  提交时间：2018/07/30
multiple solutions and sign-changing solutions  critical group  Neumann boundary value problem  Morse theory  
New linking theorem and elliptic systems with nonlinear boundary condition 期刊论文
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 2003, 卷号: 52, 期号: 7, 页码: 1797-1820
作者:  Zou, WM;  Li, SJ
收藏  |  浏览/下载：112/0  |  提交时间：2018/07/30
linking  nonlinear boundary condition  elliptic systems  
Positive solutions of elliptic boundary value problems without the (PS) type assumption 期刊论文
INDIANA UNIVERSITY MATHEMATICS JOURNAL, 2001, 卷号: 50, 期号: 3, 页码: 1347-1369
作者:  Liu, ZL;  Li, SJ;  Wang, ZQ
收藏  |  浏览/下载：80/0  |  提交时间：2018/07/30
elliptic BVP  positive solution  bifurcation diagram  variational method  descending flow  
Some minimax theorems on finding nontrivial critical points and their applications 期刊论文
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 1997, 卷号: 30, 期号: 7, 页码: 4135-4144
作者:  Li, SJ
收藏  |  浏览/下载：112/0  |  提交时间：2018/07/30
critical point  critical group  local linking  (PS) condition  resonance problem  elliptic boundary value problem  Hamiltonian system  wave equation