Cabada Fernández, AlbertoFernández Tojo, Fernando Adrián2017-10-212017-10-212016-02-29Cabada, A. & Fernández Tojo, F.A. Bound Value Probl (2016) 2016: 56. https://doi.org/10.1186/s13661-016-0565-zhttp://hdl.handle.net/10347/16003This work is devoted to the study of the existence and periodicity of solutions of initial differential problems, paying special attention to the explicit computation of the period. These problems are also connected with some particular initial and boundary value problems with reflection, which allows us to prove existence of solutions of the latter using the existence of the formereng© Cabada and Fernández Tojo 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were madeEquations with involutionsEquations with reflectionϕ-LaplacianPeriodic solutionsjournal article10.1186/s13661-016-0565-z1687-2770open access