Positive periodic solutions of nonlinear functional dif- ference equations ∗ Page 1 \noindent
Electronic Journal of Differential Equations , Vol . 2002 ( 2002 ) , No . 55 , pp . 1 −− 8 . \noindent …

This book provides a comprehensive and systematic approach to the study of the qualitative
theory of boundedness, periodicity, and stability of Volterra difference equations. The book …

In this paper, we investigate the existence of multiple positive periodic solutions to a class of
functional difference equations. We answer the open problems proposed by Y. Raffoul in …

Positive Solutions of Three-Point Nonlinear Second Order Boundary Value Problem 1
Introduction Page 1 Positive Solutions of Three-Point Nonlinear Second Order Boundary Value …

In this paper, we use the upper and lower solutions method to show that there existsa λ*,
such that the nonlinear functional difference equation of the form χ (n+ 1)= a (n) χ (n)+ λh (n) …

This study elucidates the sufficient conditions for time-delayed scalar discrete models with
nonlinear decimation terms to have at least N positive periodic solutions. Our results are …

Generalizations of Krasnoselskii’s Theorem and Petryshyn’s Theorem - ScienceDirect Skip to
main contentSkip to article Elsevier logo Journals & Books Search RegisterSign in View PDF …

This paper is devoted to elucidating a sufficient condition under which Mackey-Glass type
discrete hematopoiesis models have at least two positive periodic solutions. This model has …

Positive solutions for a nonlinear functional dynamic equation on a time scale - ScienceDirect
Skip to main contentSkip to article Elsevier logo Journals & Books Search RegisterSign in View …

POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DISCRETE SYSTEMS AND POPULATION
MODELS Page 1 POSITIVE PERIODIC SOLUTIONS OF FUNCTIONAL DISCRETE SYSTEMS …