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The Fucik spectrum of Schrodinger operator and the existence of four solutions of Schrodinger equations with jumping nonlinearities 期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2017, 卷号: 263, 期号: 10, 页码: 7000-7097
Authors:  Li, Chong;  Li, Shujie
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Schrodinger equation  Minimax principle  Morse theory  Maximum principle  Exact homology sequences  
NONTRIVIAL SOLUTIONS AND VARIATIONAL CHARACTERS OF POSITIVE HOMOGENEOUS ELLIPTIC EQUATION 期刊论文
JOURNAL OF NONLINEAR AND CONVEX ANALYSIS, 2017, 卷号: 18, 期号: 7, 页码: 1265-1277
Authors:  Li, Chong;  Li, Shujie
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Solvability  elliptic equation  Morse theory  reduced functional  
Multiple solutions for semilinear elliptic equations with Neumann boundary condition and jumping nonlinearities 期刊论文
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2010, 卷号: 371, 期号: 2, 页码: 682-690
Authors:  Zhang, Jing;  Li, Shujie;  Wang, Yuwen;  Xue, Xiaoping
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Semilinear elliptic equations  Neumann boundary condition  Multiple solutions  Jumping nonlinearity  Fucik spectrum  Degree theory  Morse theory  
Multiple periodic solutions of ordinary differential equations with double resonance 期刊论文
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 2009, 卷号: 70, 期号: 4, 页码: 1520-1527
Authors:  Su, Jiabao;  Zhao, Leiga
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Morse theory  Periodic solution  Resonance  
Some remarks on the critical point theory 期刊论文
TOPOLOGICAL METHODS IN NONLINEAR ANALYSIS, 2007, 卷号: 30, 期号: 2, 页码: 223-234
Authors:  Li, Chong
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mountain pass theorem  order intervals  Morse theory  minimax method  
Multiple solutions for a fourth-order asymptotically linear elliptic problem 期刊论文
ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2006, 卷号: 22, 期号: 4, 页码: 1121-1126
Authors:  Qian, Ai Xia;  Li, Shu Jie
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fourth-order elliptic boundary value problem  Mountain Pass theorem  Morse theory  
Nontrivial solutions of Kirchhoff-type problems via the Yang index 期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2006, 卷号: 221, 期号: 1, 页码: 246-255
Authors:  Perera, K;  Zhang, ZT
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nonlocal problems  Kirchhoff's equation  Yang index  minimax eigenvalues  variational  methods  Morse theory  critical groups  
Multiple nontrivial solutions for some fourth-order quasilinear elliptic problems 期刊论文
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 2005, 卷号: 63, 期号: 5-7, 页码: E2533-E2544
Authors:  Zhang, Jihui
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Multiple solutions  Morse theory  Quasilinear problem  
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
Authors:  Li, C;  Li, SJ
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multiple solutions and sign-changing solutions  critical group  Neumann boundary value problem  Morse theory  
Infinitely many solutions for Hamiltonian systems 期刊论文
JOURNAL OF DIFFERENTIAL EQUATIONS, 2002, 卷号: 186, 期号: 1, 页码: 141-164
Authors:  Zou, WM;  Li, SJ
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Hamiltonian system  resonance  sign-changing potential  Betti number  Morse theory