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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.
Existence results for singular integral equations of fredholm type
(Elsevier BV, 2000-02-01)
Oscillation of functional differential equations
(Elsevier BV, 2005-02-01)
Some new criteria for the oscillation of functional differential equations of the form,
d/dt[1/a(n-1)(t) d/dt q (t) f (x [g (t)]) = 0, dt a._1 (t) Tt -a,,-2 (t) Tt -al(t) dt
are presented in this paper. @ 2005 Elsevier ...
A note on equilibria for abstract economies
(Elsevier BV, 2001-08-01)
Fixed-point theory for closed inward set valued maps
(Elsevier BV, 2000-12-01)
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)
Fixed-point theorems for countably condensing maps on fréchet spaces
(Elsevier BV, 2001-09-01)
Multivalued essential maps of approximable and acyclic type
(Elsevier BV, 2000-01-01)