Global attractors, extremal stability and periodicity for a delayed population model with survival rate on isolated time scales
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• Jaqueline Godoy Mesquita,
• Ewa Schmeidel,
• Urszula Ostaszewska,
• Malgorzata Zdanowicz
Jaqueline Godoy Mesquita
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Ewa Schmeidel
University of Bialystok, Poland
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Urszula Ostaszewska
University of Bialystok
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Malgorzata Zdanowicz
University of Bialystok, Poland
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## Abstract

In this paper, we investigate the existence of global attractors, extreme stability, periodicity and asymptotically periodicity of solutions of the delayed population model with survival rate on isolated time scales given by $x^{\Delta} (t) = \gamma(t) x(t) + \dfrac{x(d(t))}{\mu(t)}e^{r(t)\mu(t)\left(1 - \frac{x(d(t))}{\mu(t)}\right)}, \ \ t \in \mathbb T.$ We present many examples to illustrate our results, considering different time scales