Acta mathematica scientia,Series B ›› 2011, Vol. 31 ›› Issue (2): 613-626.doi: 10.1016/S0252-9602(11)60261-0

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FORCED OSCILLATION OF SECOND ORDER DIFFERENTIAL EQUATIONS WITH MIXED NONLINEARITIES

Taher S.Hassan1|Lynn Erbe2|Allan Peterson2   

  1. 1. Department of Mathematics, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt;
    2. Department of Mathematics, University of Nebraska-Lincoln, Lincoln, NE 68588-0130, USA
  • Received:2008-11-17 Revised:2008-12-24 Online:2011-03-20 Published:2011-03-20

Abstract:

This article is concerned with the oscillation of the forced second order differential equation with mixed nonlinearities

(a(t)( x´(t)γ)´+p0(t) xγ( g0(t))+∑i=1npi(t)l x(gi(t))|αi sgn x (gi(t)) =e(t),
where γ is a quotient of odd positive integers, αi>0, i=1, 2, …, n, a, e, and pi C([ 0, ∞) , {R}, α(t) >0, gi: R→R are positive continuous functions on R with limt→∞gi(t)=∞, i=0, 1, …, n. Our results generalize and improve the results in a recent article by Sun and Wong [29].

Key words: Oscillation,  functional differentail equations, second order

CLC Number: 

  • 34C10
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