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Oscillation Criteria of Comparison Type for Second Order Difference Equations

  • S. R. Grace und H. A. El-Morshedy
Veröffentlicht/Copyright: 4. Juni 2010

Abstract

In this paper we investigate the oscillatory character of the second order nonlinear difference equations of the forms

Δ(cn–1Δ(xn–1 + pnxσn)) + qnƒ(xτn) = 0, n = 1, 2, . . .

and the corresponding nonhomogeneous equation

Δ(cn–1Δ(xn–1 + pnxσn)) + qnƒ(xτn) = rn, n = 1, 2, . . .

via comparison with certain second order linear difference equations where the function ƒ is not necessarily monotonic. The results of this paper are essentially new and can be extended to more general equations.

Received: 1998-03-23
Published Online: 2010-06-04
Published in Print: 2000-June

© Heldermann Verlag

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