Agirseven, DenizOzis, Turgut2024-06-122024-06-1220100020-7160https://doi.org/10.1080/00207160802395593https://hdl.handle.net/20.500.14551/21629In this paper, He's homotopy perturbation method is applied to fourth-order parabolic partial differential equations with variable coefficients to obtain the analytic solution. The method is tested on six examples, which reveal its effectiveness and simplicity.en10.1080/00207160802395593info:eu-repo/semantics/closedAccessHomotopy Perturbation MethodVariable Coefficient Fourth-Order Parabolic Differential EquationsPartial-Differential EquationsVariational Iteration MethodThin-Film FlowNonlinear ProblemsMoving BeltOscillatorTransformFluidKdvArticle87715551568Q4WOS:0002783532000102-s2.0-77953280613Q2