Candan, T.2019-08-012019-08-0120130893-9659https://dx.doi.org/10.1016/j.aml.2013.07.002https://hdl.handle.net/11480/4318In this article, we obtain sufficient conditions for first-order nonlinear neutral differential equations to have nonoscillatory solutions for different ranges of p(1)(t) and p(2)(t, xi). We use the Knaster-Tarski fixed point theorem to obtain new sufficient conditions. We give an example to illustrate the applicability of our results. (c) 2013 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessNeutral equationsFixed pointFirst orderNonoscillatory solutionArticle26121182118610.1016/j.aml.2013.07.0022-s2.0-84883455445Q1WOS:000324843100013Q1