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We will see in the next section, that there are dense open subsets of normal spaces which do not induce epimorphisms and a first countable space containing a zero-set which does
In order to give an example of a protomodular locally finitely presentable category C with a zero object which does not have a semi-abelian generator, we will present it as
For instance, the delay equation does not inherit the classical properties of the Dirichlet boundary value prob- lem for the heat equation: the maximum principle is not valid,
Abstract: We derive some sufficient conditions for certain classes of ordinary differential inequalities of neutral type with distributed delay not to have eventually positive
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
Electronic Journal of Qualitative Theory of Differential Equations 2010, No. The aim of this paper is to show that any second order nonoscil- latory linear differential equation can
∂ 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
Describe existence and uniqueness and solutions of ordinary differential equation and apply various methods to solve linear and nonlinear differential equations.. Solve boundary value
