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Oscillation of second order neutral dynamic equations with deviating arguments on time scales. (English) Zbl 1448.34167

Summary: In this paper, we consider the following second order neutral dynamic equations with deviating arguments on time scales: \[ \bigl(r(t) \bigl(z^{\Delta}(t)\bigr)^{\alpha}\bigr)^{\Delta}+q(t)f \bigl(y\bigl(m(t)\bigr)\bigr)=0, \] where \(z(t)=y(t)+p(t)y(\tau(t))\), \(m(t)\leq t\) or \(m(t)\geq t\), and \(\tau(t)\leq t\). Some new oscillatory criteria are obtained by means of the inequality technique and a Riccati transformation. Our results extend and improve many well-known results for oscillation of second order dynamic equations. Some examples are given to illustrate the main results.

MSC:

34N05 Dynamic equations on time scales or measure chains
26E70 Real analysis on time scales or measure chains
34C10 Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations
34K40 Neutral functional-differential equations

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