Cabada Fernández, AlbertoTersian, Stepan2026-02-182026-02-182013-01-15Alberto Cabada, Stepan Tersian, Multiplicity of solutions of a two point boundary value problem for a fourth-order equation, Applied Mathematics and Computation, Volume 219, Issue 10, 2013, Pages 5261-5267, ISSN 0096-3003, https://doi.org/10.1016/j.amc.2012.11.066. (https://www.sciencedirect.com/science/article/pii/S0096300312012337)0096-3003https://hdl.handle.net/10347/45948We study the existence of multiple solutions for semi linear fourth-order differential equation describing elastic deflections. The proof of the main result is based on a three critical point theoremengAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Three critical point theoremTwo-points BVPFourth-order equation1202 Análisis y análisis funcionaljournal article10.1016/j.amc.2012.11.0661873-5649open access