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Second order nonlinear ordinary differential equation, impulse, periodic solution, lower function, upper function.. , m, are continuous functions
In the qualitative theory of nonlinear partial differential equations, one of the important problems is to determine whether or not solutions of the equation under con- sideration
Adjoint equation, fixed points, principal matrix solution, resolvent, variation of parameters, Volterra integro-differential equation.... With this they were able to derive
Abstract: In this paper we shall study a neutral differential equation with deviated argument in an arbitrary Banach space X. With the help of the analytic semigroups theory and
Wei, Positive solution of singular Dirichlet boundary value problems for second. order ordinary differential equation
∂ 2 ); this representation allows them to reduce the controllability of this partial differential equation with delay to a family of ordinary delay equations and prove the main
A first attempt to model aggregating behavior using partial differential equations conducts to the following equation (see D.. Nevertheless, since f ′ (u) may be negative for
We use an approach developed in Lin and Willmot (1999), under which the solution to a defective renewal equation is expressed in terms of a compound geometric tail, to derive
