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Boundary value problems for discrete equations
(Elsevier BV, 1997-07-01)
Two existence results are presented for second-order discrete boundary value problems. The first result is based on the notion of upper and lower solutions and the second result is based on the discrete Gelfand problem.
Global existence for nonlinear operator inclusions
(Elsevier BV, 1999-12-01)
Discrete systems on infinite intervals
(Elsevier BV, 1998-05-01)
We study superlinear boundary value problems for a discrete system which in particular includes the prototype equation x(k + 1) = f(k,x(k)), equations with finite as well as infinite delays, equations of neutral type, and ...
A fixed-point approach for nonlinear discrete boundary value problems
(Elsevier BV, 1998-11-01)
Continuation methods for closed, weakly closed, dkt, and wdkt maps
(Elsevier BV, 1999-10-01)
Existence of solutions to singular integral equations
(Elsevier BV, 1999-05-01)
Singular discrete boundary value problems
(Elsevier BV, 1999-05-01)
Topological essentiality and fixed point theory
(Elsevier BV, 1999-10-01)
Multiple solutions for higher-order difference equations
(Elsevier BV, 1999-05-01)
Positive solutions to singular initial value problems with sign changing nonlinearities
(Elsevier BV, 1998-08-01)