This paper deals with second-order nonlinear neutral delay dynamic equations of the form
on time scales satisfying the implication for all , where are positive reals. The reviewer wants to point out that in case or this implies bounded graininess of the time scale under consideration. Moreover, is an odd integer, the positive coefficient functions are assumed to be -continuous where satisfies some integrability condition, and the nonlinearity is continuous satisfying some positive feedback property.
The author provides various sufficient oscillation criteria for the above equation, in particular of Philos- and Kamenev-type. From these general results, certain special cases for particular time scales are deduced. Referring to the above remark on bounded graininess, Corollaries 4.5 and 4.6 are only applicable in the delay-free case . Finally, three examples illustrate the paper.