Cabada Fernández, AlbertoPrecup, RaduSaavedra López, LorenaTersian, Stepan A.2017-10-212017-10-212016Cabada, A.; Precup, R.; Saavedra, L.; Tersian, Stepan A. Multiple positive solutions to a fourth-order boundary-value problem. Electronic Journal of Differential Equations, Vol. 2016 (2016), No. 254, pp. 1–18. ISSN: 1072-6691. URL: http://ejde.math.txstate.edu or http://ejde.math.unt.edu1072-6691http://hdl.handle.net/10347/16021We study the existence, localization and multiplicity of positive solutions for a nonlinear fourth-order two-point boundary value problem. The approach is based on critical point theorems in conical shells, Krasnosel’ski˘ı’s compression-expansion theorem, and unilateral Harnack type inequalitieseng© The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. This is an open access journal which means that all content is freely available without charge to the users or their institutions. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the authorjournal articleopen access