An example of a Schroedinger equation with almost periodic potential and nowhere dense spectrum.
An existence and multiplicity result for a periodic boundary value problem
A periodic boundary value problem for nonlinear differential equation of the second order is studied. Nagumo condition is not assumed on a part of nonlinearity. Existence and multiplicity results are proved using the method of lower and upper solutions. Results are applied to the generalized Liénard oscillator.
An existence criterion of positive solutions of -type retarded functional differential equations
An existence principle for nonlocal difference boundary value problems with -Laplacian and its application to singular problems.
An existence result for a linear abstract stochastic equation in Hilbert spaces
An existence result for a multipoint boundary value problem on a time scale.
An existence result for first order initial value problems for impulsive differential inclusions in Banach spaces
In this paper, a nonlinear alternative for multivalued maps is used to investigate the existence of solutions of first order impulsive initial value problem for differential inclusions in Banach spaces.
An existence result for impulsive functional differential inclusions in Banach spaces
We use the topological degree theory for condensing multimaps to present an existence result for impulsive semilinear functional differential inclusions in Banach spaces. Moreover, under some additional assumptions we prove the compactness of the solution set.
An existence result for neutral functional differential inclusions in a Banach space.
An existence result for nonlinear fractional differential equations on Banach spaces.
An existence result for second-order impulsive differential equations with nonlocal conditions.
An existence result on periodic solutions of an ordinary -Laplacian system.
An existence result to a strongly coupled degenerated system arising in tumor modeling.
An existence theorem for a third-order three-point boundary value problem without growth restrictions
An existence theorem for bounded solutions of differential equations in Banach spaces
An existence theorem for certain solutions of algebraic differential equations in sectors
An existence theorem for differential inclusions on Banach space.
An existence theorem for fractional hybrid differential inclusions of Hadamard type
This paper studies the existence of solutions for fractional hybrid differential inclusions of Hadamard type by using a fixed point theorem due to Dhage. The main result is illustrated with the aid of an example.
An existence theorem for periodic boundary value problems for systems of second order diffferential equations
An existence theorem for semilinear functional parabolic equations