Existence of square-mean almost periodic mild solutions to some nonautonomous stochastic second-order differential equations.
Existence of symmetric positive solutions for an -point boundary value problem.
Existence of -periodic solutions for a class of lagrangian systems
Existence of the fundamental solution of a second order evolution equation
We give sufficient conditions for the existence of the fundamental solution of a second order evolution equation. The proof is based on stable approximations of an operator A(t) by a sequence of bounded operators.
Existence of three anti-periodic solutions for second-order impulsive differential inclusions with two parameters
Applying two three critical points theorems, we prove the existence of at least three anti-periodic solutions for a second-order impulsive differential inclusion with a perturbed nonlinearity and two parameters.
Existence of three monotone solutions of nonhomogeneous multipoint BVPs for second-order differential equations.
Existence of three positive periodic solutions for differential systems with feedback controls on time scales.
Existence of three positive solutions for -point discrete boundary value problems with -Laplacian.
Existence of three positive solutions to nonlinear boundary value problems.
Existence of three solutions for a higher-order boundary-value problem.
Existence of three solutions for sytems of multi-point boundary value problems.
Existence of triple positive periodic solutions of a functional differential equation depending on a parameter.
Existence of trivial and nontrivial solutions of a fourth-order ordinary differential equation.
Existence of two solutions for quasilinear periodic differential equations with discontinuities
In this paper we examine a quasilinear periodic problem driven by the one- dimensional -Laplacian and with discontinuous forcing term . By filling in the gaps at the discontinuity points of we pass to a multivalued periodic problem. For this second order nonlinear periodic differential inclusion, using variational arguments, techniques from the theory of nonlinear operators of monotone type and the method of upper and lower solutions, we prove the existence of at least two non trivial solutions,...
Existence of unstable manifolds for a certain class of delay differential equations.
Existence of viable solutions for a nonconvex stochastic differential inclusion
For the stochastic viability problem of the form dx(t) ∈ F(t,x(t))dt+g(t,x(t))dW(t), x(t) ∈ K(t), where K, F are set-valued maps which may have nonconvex values, g is a single-valued function, we establish the existence of solutions under the assumption that F and g possess Lipschitz property and satisfy some tangential conditions.
Existence of viable solutions for nonconvex differential inclusions.
Existence of viable solutions for nonconvex-valued differential inclusions in Banach spaces.
Existence of weak solutions for abstract hyperbolic-parabolic equations.
Existence of weak solutions for second-order boundary value problem of impulsive dynamic equations on time scales.