Positive solution to nonzero boundary values problem for a coupled system of nonlinear fractional differential equations.
Positive solutions and continuous branches for boundary-value problems of differential inclusions.
Positive solutions and oscillation of higher order neutral difference equations
Positive solutions for a class of singular two point boundary value problems.
Positive solutions for a system of fractional boundary value problems
We investigate the existence and multiplicity of positive solutions for a system of nonlinear Riemann-Liouville fractional differential equations with nonnegative nonlinearities which can be nonsingular or singular functions, subject to multi-point boundary conditions that contain fractional derivatives.
Positive solutions for a system of nonlinear boundary-value problems on time scales.
Positive solutions for an m-point boundary-value problem.
Positive solutions for multipoint boundary value problem of fractional differential equations.
Positive solutions for singular three-point boundary-value problems.
Positive solutions of a boundary value problem for a nonlinear fractional differential equation.
Positive Solutions of a Class of Second Order Semilinear Elliptic Equations in the Plane.
Positive solutions of -point boundary value problems for fractional differential equations.
Positive solutions of singular multipoint boundary value problems for systems of nonlinear second-order differential equations on infinite intervals in Banach spaces.
Positive solutions to boundary value problems of nonlinear fractional differential equations.
Positive solutions to nonlinear higher-order nonlocal boundary value problems for fractional differential equations.
Positive stable realizations of fractional continuous-time linear systems
Conditions for the existence of positive stable realizations with system Metzler matrices for fractional continuous-time linear systems are established. A procedure based on the Gilbert method for computation of positive stable realizations of proper transfer matrices is proposed. It is shown that linear minimum-phase systems with real negative poles and zeros always have positive stable realizations.
Positively homogeneous functions and the Łojasiewicz gradient inequality
It is quite natural to conjecture that a positively homogeneous function with degree d ≥ 2 on satisfies the Łojasiewicz gradient inequality with exponent θ = 1/d without any need for an analyticity assumption. We show that this property is true under some additional hypotheses, but not always, even for N = 2.
Positivity of the Green functions for higher order ordinary differential equations.
Power bounded prolongations and Picard-Lindelöf iteration.
Power series techniques for a special Schrödinger operator and related difference equations.