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首页> 外文期刊>Journal of Mathematical Analysis and Applications >Robust uniform persistence in discrete and continuous nonautonomous systems
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Robust uniform persistence in discrete and continuous nonautonomous systems

机译:离散和连续非自治系统中的鲁棒一致持久性

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摘要

This is an extension of the work in Salceanu (2011) [14] to nonautonomous systems of difference and differential equations on the positive cone of R ~m that exhibit a positively invariant boundary hyperplane X. It is shown that when a compact subset of X, which attracts all orbits in X, is a robust uniform weak repeller, robust uniform persistence for the complementary dynamics (i.e., the dynamics in R ~m{set minus} X) is obtained. Additional assumptions are made, to deal with the nonautonomous nature of the systems. Some particular cases that often occur in applications are discussed and then sufficient conditions for the robust uniform persistence of the disease in two epidemic models from the literature are given.
机译:这是Salceanu(2011)[14]中的工作的扩展,它扩展到R〜m正圆锥上具有正不变边界超平面X的非自治差分和微分方程组。研究表明,当X的紧凑子集时,它吸引了X中的所有轨道,是一个鲁棒的均匀弱推斥极,获得了互补动力学(即,R〜m {set减去X}中的动力学)的鲁棒均匀持久性。进行了其他假设,以处理系统的非自治性质。讨论了在应用中经常发生的一些特殊情况,然后在文献中的两个流行病模型中给出了足以使该疾病稳定,持久持续的充分条件。

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