Positive Solutions for Nonlinear n th-Order Singular Nonlocal Boundary Value Problems
Positive Solutions for Nonlinear n th-Order Singular Nonlocal Boundary Value Problems
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DOI:
10.1155/2007/74517
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发表时间:
2007
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影响因子:
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通讯作者:
Xinan Hao;Lishan Liu;Yonghong Wu
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文献类型:
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作者:
Xinan Hao;Lishan Liu;Yonghong Wu
We study the existence and multiplicity of positive solutions for a class of nth-order singular nonlocal boundary value problems u(n)(t) + a(t) f (t,u) = 0, t ∈ (0,1), u(0) = 0, u′(0) = 0, . . . ,u(n−2)(0) = 0, αu(η) = u(1), where 0 < η < 1, 0 < αηn−1 < 1. The singularity may appear at t = 0 and/or t = 1. The Krasnosel’skii-Guo theorem on cone expansion and compression is used in this study. The main results improve and generalize the existing results.