Global structure of nodal solutions for a fourth-order two-point boundary value problem
Global structure of nodal solutions for a fourth-order two-point boundary value problem
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DOI:
10.1016/j.amc.2011.12.080
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发表时间:
2012-09
期刊:
影响因子:
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通讯作者:
Wenguo Shen
中科院分区:
文献类型:
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作者:
Wenguo Shen
We consider the fourth-order two-point boundary value problem x⁗+kx″+lx=a(t)f(x),0<t<1, x(0)=x(1)=x′(0)=x′(1)=0, where a∈C([0,1],[0,∞)) with a(t)≢0 on any subinterval of [0,1],f∈C1((R⧹{0}),R)∩C(R,R) satisfies f(x)x>0 for all x≠0. We give conditions on the constants k, l and the function f(x) that guarantee the existence and multiplicity results of nodal solutions. The proofs of our main results are based upon disconjugate operator theory and the global bifurcation techniques.