## A new almost-periodic type of solutions to second-order neutral delay differential equations with piecewise constant argument.(English)Zbl 0961.34062

From the author’s abstract: A definition of pseudo almost-periodic sequences is given and the existence of a pseudo almost-periodic sequence to difference equations is studied. Based on these, the existence of pseudo almost-periodic solutions to neutral delay differential equations with piecewise constant argument is investigated.
Reviewer: W.M.Oliva (Lisboa)

### MSC:

 34K14 Almost and pseudo-almost periodic solutions to functional-differential equations 34K40 Neutral functional-differential equations
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### References:

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