In this paper, we introduce the index of an impulsive periodic orbit, which can be used to judge the Zhukovskii quasi-stabilities of periodic orbits. Also, we present an example of predator-prey model to illustrate our results. (C) 2019 Elsevier Ltd. All rights reserved.
机构:
Inst Nacl Matemat Pura & Aplicada, Estr Dona Castorina 110, BR-22460320 Rio De Janeiro, BrazilInst Nacl Matemat Pura & Aplicada, Estr Dona Castorina 110, BR-22460320 Rio De Janeiro, Brazil