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Sharp conditions for oscillations caused by retarded and advanced perturbations
Published online by Cambridge University Press: 17 April 2009
Abstract
In this paper we study the oscillatory behaviour of solutions of equations of the forms , where pi, and τi, for i = 1, 2,…, n, are positive constants and p is an arbitary constant. Three necessary and sufficient conditions for all solutions of (A) and (B) respectively to be oscillatory are established. These results extend and generalise previous results in a new approach.
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- Copyright © Australian Mathematical Society 1988
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