Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12573/395
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Conference Object Citation - Scopus: 1On the Existence of Positive Solutions for the Time-Scale Dynamic Equations on Infinite Intervals(Springer, 2020) Doǧan, Abdülkadir MuhittinThis paper investigates the existence of positive solutions to time-scale boundary value problems on infinite intervals. By applying the Leggett-Williams fixed point theorem in a cone, some new results for the existence of at least three positive solutions of boundary value problems are found. With infinite intervals, the theorem can be used to prove the existence of solutions of boundary value problems for nonlinear dynamic equations dependence on the delta derivative explicitly. Our results are new for the special cases of difference equations and differential equations as well as in the general time scale setting. © 2020 Elsevier B.V., All rights reserved.Article Citation - WoS: 17Citation - Scopus: 13Existence of Multiple Positive Solutions for P-Laplacian Multipoint Boundary Value Problems on Time Scales(Springeropen, 2013-08-07) Dogan, AbdulkadirIn this paper, we consider p-Laplacian multipoint boundary value problems on time scales. By using a generalization of the Leggett-Williams fixed point theorem due to Bai and Ge, we prove that a boundary value problem has at least three positive solutions. Moreover, we study existence of positive solutions of a multipoint boundary value problem for an increasing homeomorphism and homomorphism on time scales. By using fixed point index theory, sufficient conditions for the existence of at least two positive solutions are provided. Examples are given to illustrate the results. MSC: 34B15, 34B16, 34B18, 39A10.Article Citation - WoS: 1Citation - Scopus: 10Existence of Countably Many Positive Solutions for Nonlinear Boundary Value Problems on Time Scales(Natural Sciences Publishing Corp-nsp, 2014-09-01) Dogan, AbdulkadirIn this paper, we consider the existence of countably many positive solutions for nonlinear singular boundary value problem on time scales. By using the fixed-point index theory and a new fixed-point theorem in cones, the sufficient conditions for the existence of countably many positive solutions are established.