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Multiple solutions and sign-changing solutions of a class of nonlinear elliptic equations with Neumann boundary condition |
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| Authors: | Chong Li Shujie Li |
| Affiliation: | a Department of Mathematical Sciences, Tsinghua University, Beijing 100084, PR China b Institute of Mathematics, Academy of Mathematics and System Sciences, Academia Sinica, Beijing 100080, PR China |
| Abstract: | |
| Keywords: | Multiple solutions and sign-changing solutions Critical group Neumann boundary value problem Morse theory |
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