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Oscillation of second-order linear delay differential equations

100%

Ohriska J.

Open Mathematics

2008

tom 6

nr 3

439-452

The aim of this paper is to derive sufficient conditions for the linear delay differential equation (r(t)y′(t))′ + p(t)y(τ(t)) = 0 to be oscillatory by using a generalization of the Lagrange mean-value theorem, the Riccati differential inequality and the Sturm comparison theorem.

On some properties of the functions from Sobolev-Morrey type spaces

63%

Najafov A.

Open Mathematics

2005

tom 3

nr 3

496-507

In this paper the spaces of type Sobolev-Morrey-W p,a,г,τl(Q,G)-are constructed, the differential properties are studied and it is proved that the functions from these spaces satisfy Holder's condition, in the case, if the domain G∋R n satisfies the flexible λ-horn condition.

Ograniczanie wyników

2 Open Mathematics

1 Najafov A.

1 Ohriska J.

1 2008

1 2005

Wyniki wyszukiwania

Oscillation of second-order linear delay differential equations

On some properties of the functions from Sobolev-Morrey type spaces