This paper is a sequel to a previous paper (Yang, Y. and Zhang, J. H. Existence of solutions for some fourth-order boundary value problems with parameters. Nonlinear Anal.69(2), 1364–1375 (2008)) in which the nontrivial solutions to the fourth-order boundary value problems were studied. In the current work with the same conditions near infinity but different near zero, the positive, negative, and sign-changing solutions are obtained by the critical point theory, retracting property, and invariant sets.
机构:
Nanjing Normal Univ, Inst Math, Sch Math Sci, Nanjing 210097, Peoples R China
Jiangnan Univ, Sch Sci, Wuxi 214122, Jiangsu Prov, Peoples R ChinaNanjing Normal Univ, Inst Math, Sch Math Sci, Nanjing 210097, Peoples R China
Yang, Yang
Zhang, Ji-hui
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Nanjing Normal Univ, Inst Math, Sch Math Sci, Nanjing 210097, Peoples R ChinaNanjing Normal Univ, Inst Math, Sch Math Sci, Nanjing 210097, Peoples R China