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  • Article
    Citation - WoS: 45
    Citation - Scopus: 61
    On the System of Rational Difference Equations xn = a yn< = byn-3<
    (Elsevier Science inc, 2007) Ozban, Ahmet Yasar
    In this paper we investigate the behaviour of the positive solutions of the system of rational difference equation x(n) = a/y(n-3), y(n) = by(n-3)/x(n-q)Y(n-q), n = 1, 2,..., where q > 3 is a positive integer with 3 inverted iota q, a and b are positive constants and tile initial values x(-q+1),x(-q+2),...,x0, Y-q+1,y(-q+2),...,y(0) are positive real numbers. (C) 2006 Elsevier Inc. All rights reserved.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Existence of Positive Solutions of a Sturm-Liouville Bvp on an Unbounded Time Scale
    (Taylor & Francis Ltd, 2008) Topal, S. Gulsan; Yantir, Ahmet; Cetin, Erbil
    A fixed point theorem of Guo-Krasnoselskii type is used to establish existence results for the nonlinear Sturm-Liouville dynamic equation (p(t)x(Delta))(del) + lambda phi(t)f(t,x(t)) = 0 with the boundary conditions on an unbounded time scale. Later on the positivity and the boundedness of the solutions are obtained by imposing some conditions on f.
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    On a system of second-order multi-point boundary value problems on time scales
    (Tbilisi Centre Math Sci, 2021) Oguz, Arzu Denk; Topal, S. Gulsan
    This paper is concerned with the existence and nonexistence of positive solutions for a system of nonlinear second order dynamic equations with multi-point boundary conditions on time scales.