ABSTRACT. In this paper, oscillatory and asymptotic properties of solutions of nonlinear fourth order neutral dynamic equations of the formare studied on a time scale T under the assumption that

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In this paper, the authors classified all solutions of the second-order nonlinear neutral delay dynamic equations with positive and negative coefficients into four classes and obtained conditions for the existence / non-existence of solutions in these classes. Examples are included to illustrate the validation of the main results.Keywords -Second-order, neutral dynamic equations, oscillatory solution, positive and negative coefficients, weakly oscillatory solution, asymptotic behaviour.

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