A Note on Multiple Solutions of Some Sem
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E.N. Dancer; Yihong Du
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Article
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1997
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Elsevier Science
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English
โ 228 KB
We discuss the existence of multiple solutions of nonlinear elliptic equations by a combination of variational, topological methods and the generalized Conley index theory. We obtain several positive solutions and sign-changing solutions. Our main point is to show the usefulness of the Morse inequal