Dogan, Abdulkadir2025-09-252025-09-2520150893-9659https://doi.org/10.1016/j.aml.2015.05.004https://hdl.handle.net/20.500.12573/4317This paper is concerned with the existence of positive solutions to a second order boundary value problem. By imposing growth conditions on f and using a generalization of the Leggett-Williams fixed point theorem, we prove the existence of at least three symmetric positive solutions. (C) 2015 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessBoundary Value ProblemGreen's FunctionMultiple SolutionFixed Point TheoremArticle10.1016/j.aml.2015.05.0042-s2.0-84930945537