preprints.org > computer science and mathematics > algebra and number theory > doi: 10.20944/preprints202102.0197.v2

Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 6 February 2021 / Approved: 8 February 2021 / Online: 8 February 2021 (12:05:46 CET)
Version 2 : Received: 14 April 2021 / Approved: 14 April 2021 / Online: 14 April 2021 (16:10:50 CEST)

In this paper, by using the variational method, a sufficient condition for the unique existence of the stationary solution of the reaction-diffusion ecosystem is obtained, which directly leads to the global asymptotic stability of the unique equilibrium point. Moreover, delayed feedback ecosystem with reaction-diffusion item is considered, and utilizing impulse control results in the globally exponential stability criterion of the delayed ecosystem. It is worth mentioning that the Neumann zero-boundary value that the infected and the susceptible people or animals should be controlled in the epidemic prevention area and not allowed to cross the border, which is a good simulation of the actual situation of epidemic prevention. And numerical examples illuminate the effectiveness of impulse control, which has a certain enlightening effect on the actual epidemic prevention work . That is, in the face of the epidemic situation, taking a certain frequency of positive and effective epidemic prevention measures is conducive to the stability and control of the epidemic situation. Particularly, the newly-obtained theorems quantifies this feasible step. Besides, utilizing Laplacian semigroup derives the $p$th moment stability criterion for the impulsive ecosystem.

Neumann boundary value; Laplacian semigroup; Poincare inequality lemma; impulse control; Lyapunov-Razumikhin method

Computer Science and Mathematics, Algebra and Number Theory

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