Abstract.
We prove a multiplicity result for the two-point boundary value problem associated to a second order equation of the form ¶¶\( u'' + {\cal F}(t, u, u') = 0 \)¶¶ where \( {\cal F} = {\cal F}(t,x,y) \) satisfies a sublinear condition at x = 0 and no assumption at infinity is required. We use a topological degree method based on a continuation theorem and on the performance of a time-map technique for an autonomous problem.
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Received December 22, 1997
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Capietto, A., Dambrosio, W. Boundary value problems with sublinear conditions near zero. NoDEA, Nonlinear differ. equ. appl. 6, 149–172 (1999). https://doi.org/10.1007/s000300050070
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DOI: https://doi.org/10.1007/s000300050070