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Opial's type inequalities on time scales and some applications

S. H. Saker (2012)

Annales Polonici Mathematici

We prove some new Opial type inequalities on time scales and employ them to prove several results related to the spacing between consecutive zeros of a solution or between a zero of a solution and a zero of its derivative for second order dynamic equations on time scales. We also apply these inequalities to obtain a lower bound for the smallest eigenvalue of a Sturm-Liouville eigenvalue problem on time scales. The results contain as special cases some results obtained for second order differential...

Oscillation criteria for third order nonlinear delay dynamic equations on time scales

Zhenlai Han, Tongxing Li, Shurong Sun, Fengjuan Cao (2010)

Annales Polonici Mathematici

By means of Riccati transformation technique, we establish some new oscillation criteria for third-order nonlinear delay dynamic equations ( ( x Δ Δ ( t ) ) γ ) Δ + p ( t ) x γ ( τ ( t ) ) = 0 on a time scale ; here γ > 0 is a quotient of odd positive integers and p a real-valued positive rd-continuous function defined on . Our results not only extend and improve the results of T. S. Hassan [Math. Comput. Modelling 49 (2009)] but also unify the results on oscillation of third-order delay differential equations and third-order delay difference...

Oscillation of even order nonlinear delay dynamic equations on time scales

Lynn H. Erbe, Raziye Mert, Allan Peterson, Ağacık Zafer (2013)

Czechoslovak Mathematical Journal

One of the important methods for studying the oscillation of higher order differential equations is to make a comparison with second order differential equations. The method involves using Taylor's Formula. In this paper we show how such a method can be used for a class of even order delay dynamic equations on time scales via comparison with second order dynamic inequalities. In particular, it is shown that nonexistence of an eventually positive solution of a certain second order delay dynamic inequality...

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