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Öğe EXISTENCE OF POSITIVE SOLUTIONS FOR A SECOND-ORDER p-LAPLACIAN IMPULSIVE BOUNDARY VALUE PROBLEM ON TIME SCALES(Springer Singapore Pte Ltd, 2017) Fen, F. Tokmak; Karaca, I. Y.In this paper, we investigate the existence of positive solutions for a second-order multipoint p-Laplacian impulsive boundary value problem on time scales. Using a new fixed point theorem in a cone, sufficient conditions for the existence of at least three positive solutions are established. An illustrative example is also presented.Öğe POSITIVE SOLUTIONS OF nTH-ORDER m-POINT BOUNDARY VALUE PROBLEMS(Springer Singapore Pte Ltd, 2016) Karaca, I. Yaslan; Fen, F. TokmakIn this paper, by using four functionals fixed point theorem, we obtain sufficient conditions for the existence of at least one positive solution of an nth-order m-point boundary value problem. As an application, we give an example to demonstrate our main result.