Existence and uniqueness of periodic solutions of linear differential equations in Banach spaces
Existence, multiplicity, and bifurcation in systems of ordinary differential equations.
Existence of positive periodic solutions to -species nonautonomous food chains with harvesting terms.
Existence of almost automorphic solutions to some classes of nonautonomous higher-order differential equations.
Existence of almost periodic solutions of systems of linear and quasilinear differential equations with time lag
Existence of almost-periodic ultra-weak solutions to the equation in Hilbert spaces
Existence of asymptotic solutions of second order neutral differential equation with multiple delays.
Existence of conjugate points for second-order linear differential equations.
Existence of flat tori in analytic manifolds of nonpositive curvature
Existence of global solutions for systems of second-order differential equations with -Laplacian.
Existence of global solutions to differential inclusions; a priori bounds
The paper presents an existence result for global solutions to the finite dimensional differential inclusion being defined on a closed set A priori bounds for such solutions are provided.
Existence of limit cycles in a predator-prey system with a functional response.
Existence of monotone solutions for nonhnear perturbed differential inclusions.
Existence of multiple critical points for an asymptotically quadratic functional with applications.
Existence of multiple solutions for a class of second-order ordinary differential equations.
Existence of noncontinuable solutions.
Existence of one-signed solutions of nonlinear four-point boundary value problems
In this paper, we are concerned with the existence of one-signed solutions of four-point boundary value problems and where , is a constant and is a parameter, , with for . The proof of the main results is based upon bifurcation techniques.
Existence of oscillatory and nonoscillatory solutions for a class of neutral functional differential equations
For a certain class of functional differential equations with perturbations conditions are given such that there exist solutions which converge to solutions of the equations without perturbation.
Existence of oscillatory solutions for functional differential equations of neutral type.
Existence of periodic orbits for vector fields via Fuller index and the averaging method.