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Agarwal, R.P., Perera, K. and O’Regan, D. (2004) Multiple Positive Solutions of Singular and Nonsingular Discrete Problems via Variational Methods. NNonlinear Analysis: Theory, Methods & Applications, 58, 69-73.
https://doi.org/10.1016/j.na.2003.11.012

has been cited by the following article:

• TITLE: Sign-Changing Solutions for Discrete Dirichlet Boundary Value Problem

  AUTHORS: Yuhua Long, Baoling Zeng

  KEYWORDS: Sign-Changing Solution, Difference Equation, Dirichlet Boundary Value Problem, Invariant Sets of Descending Flow

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.5 No.11, November 23, 2017

  ABSTRACT: Using invariant sets of descending flow and variational methods, we establish some sufficient conditions on the existence of sign-changing solutions, positive solutions and negative solutions for second-order nonlinear difference equations with Dirichlet boundary value problem. Some results in the literature are improved.