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Multiple positive solutions to fourth-order singular boundary-value problems in abstract spaces. (English) Zbl 1076.34068

Summary: We prove the existence of multiple positive solutions to singular boundary value problems for fourth-order equations in abstract spaces.

MSC:

34G20 Nonlinear differential equations in abstract spaces
34B15 Nonlinear boundary value problems for ordinary differential equations
34B18 Positive solutions to nonlinear boundary value problems for ordinary differential equations
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