In this paper, first, we establish the equivalence of the oscillation of the nonlinear dynamic equationson time scales, from which we obtain some oscillation criteria and comparison theorems for the first equation. Next, we obtain some new oscillation criteria for second-order linear dynamic equations on time scales. (~)

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In this paper, we consider the following equationwhere p ( t ) > 0. We give some new oscillation conditions for Eq. (I).

This paper is concerned with the linear delay partial difference equation Am, ZpiAm-ki,n-li--qjAm+.,n+aj,

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