1. Difference Equations and Inequalities;Agarwal,1992
2. Focal Boundary Value Problems for Differential and Difference Equations;Agarwal,1998
3. A fixed point approach for nonlinear discrete boundary value problems;Agarwal;Comput. Math. Appl.,1998
4. A coupled system of difference equations;Agarwal;Appl. Math. Comp.,2000
5. Positive Solutions of Differential, Difference and Integral Equations;Agarwal,1999