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Fourth-order problems with nonlinear boundary conditions. (English) Zbl 1068.34013
The authors consider monotone-type and nonmonotone boundary conditions for fourth-order ordinary differential equations.
In each of the two types of problems an existence result is established. The proofs (especially in monotone case) are technically complicated.

##### MSC:
 34B15 Nonlinear boundary value problems for ordinary differential equations
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##### References:
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