Cabada Fernández, AlbertoDimitrov, Nikolay2026-01-082026-01-082018-04-16Cabada A, Dimitrov ND. Positive homoclinic solutions of n-th order difference equations with sign-changing Green's function. Math Meth Appl Sci. 2018; 41: 4763–4775. https://doi.org/10.1002/mma.49290170-4214https://hdl.handle.net/10347/44937This is the peer reviewed version of the following article: [Cabada A, Dimitrov ND. Positive homoclinic solutions of n-th order difference equations with sign-changing Green's function. Math Meth Appl Sci. 2018; 41: 4763–4775], which has been published in final form at [https://doi.org/10.1002/mma.4929]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.In this paper we, consider an n-th order nonlinear difference equation with parameter dependence. An exhaustive study of the related Green's function is done. The exact expression of the function is given. The range of parameter for which either it has constant sign or it changes sign is obtained. Some existence results for the nonlinear problem are deduced by using the classical Krasnosel'skii's fixed point theorem on cones and fixed point index theory.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Difference equationHomoclinic solutionsPositive solutionsParameter dependenceSign-changing Green's function1202 Análisis y análisis funcionaljournal article10.1002/mma.49291099-1476open access