Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: oscillation theorems

Sortuj według:

Ogranicz wyniki do:

Oscillation theorems for a class of second order nonlinear differentialequation with perturbation

Zhang Q., Qiu F., Ji Z.

Demonstratio Mathematica

2007

Vol. 40, nr 1

95-105

In this paper we discuss the oscillatory and asymptotic behavior of a second order nonlinear dierential equation with perturbation and establish two theorems which develop and generalize some known results.

Oscillation of parabolic delay differential equations with positive and negative coefficients

Kubiaczyk I., Saker S.H.

Annales Societatis Mathematicae Polonae. Seria 1: Commentationes Mathematicae

2002

[Z] 42(2)

221-236

Some new sufficient conditions for oscillation of the parabolic delay differential equations with positive and negative coefficients are obtained. Our results extend and improve the well known results in the literature.