具有静止阶段的空间大小阶段结构模型的稳定性和分岔分析

IF 1.9 4区数学 Q2 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS

International Journal of Bifurcation and Chaos Pub Date : 2024-04-09 DOI:10.1142/s0218127424500603

Yajing Li, Zhihua Liu

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引用次数: 0

摘要

在本文中，我们考虑了一个具有休止期的空间大小-阶段-结构种群动力学模型。该模型的主要目的是同时研究单一种群系统中的规模结构、阶段结构、休止阶段和空间位置。首先，我们将该问题重新表述为一个抽象的非密定义柯西问题。然后，我们利用综合半群理论和分岔理论，研究了模型正平衡时的稳定性和霍普夫分岔。最后，我们通过数值模拟来证明我们的分析结果。此外，还简要讨论了相关问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Stability and Bifurcation Analysis of a Spatially Size–Stage-Structured Model with Resting Phase

In this paper, we consider a spatially size–stage-structured population dynamics model with resting phase. The primary objective of this model is to study size structure, stage structure, resting phase and spatial location simultaneously in a single population system. At first, we reformulate the problem as an abstract nondensely defined Cauchy problem. Then, taking advantage of the integrated semigroup and bifurcation theories, we investigate the stability and Hopf bifurcation at the positive equilibrium of the model. Finally, numerical simulations are presented as evidence to support our analytical results. A discussion of related problems is also presented briefly.

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来源期刊

International Journal of Bifurcation and Chaos 数学-数学跨学科应用

CiteScore

4.10

自引率

13.60%

发文量

237

审稿时长

2-4 weeks

期刊介绍： The International Journal of Bifurcation and Chaos is widely regarded as a leading journal in the exciting fields of chaos theory and nonlinear science. Represented by an international editorial board comprising top researchers from a wide variety of disciplines, it is setting high standards in scientific and production quality. The journal has been reputedly acclaimed by the scientific community around the world, and has featured many important papers by leading researchers from various areas of applied sciences and engineering. The discipline of chaos theory has created a universal paradigm, a scientific parlance, and a mathematical tool for grappling with complex dynamical phenomena. In every field of applied sciences (astronomy, atmospheric sciences, biology, chemistry, economics, geophysics, life and medical sciences, physics, social sciences, ecology, etc.) and engineering (aerospace, chemical, electronic, civil, computer, information, mechanical, software, telecommunication, etc.), the local and global manifestations of chaos and bifurcation have burst forth in an unprecedented universality, linking scientists heretofore unfamiliar with one another''s fields, and offering an opportunity to reshape our grasp of reality.