宝鸡文理学院数学与信息科学学院, 陕西 宝鸡 721013
罗丽琴(1999年生),女;研究方向:偏微分方程应用及其可视化;E-mail:luoliqin@stu.bjwlxy.edu.cn
李海侠(1977年生),女;研究方向:偏微分方程应用及其可视化; E-mail:lihaixia@bjwlxy.edu.cn
收稿:2024-04-23,
录用:2025-03-07,
网络出版:2025-04-27,
纸质出版:2025-07-25
移动端阅览
罗丽琴,李海侠,吴绍艳.一类具有交错扩散和捕获项的捕食-食饵模型的稳态解[J].中山大学学报(自然科学版)(中英文),2025,64(04):134-146.
LUO Liqin,LI Haixia,WU Shaoyan.Steady-state solutions of a predator-prey model with cross-diffusion and harvesting[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(04):134-146.
罗丽琴,李海侠,吴绍艳.一类具有交错扩散和捕获项的捕食-食饵模型的稳态解[J].中山大学学报(自然科学版)(中英文),2025,64(04):134-146. DOI: 10.13471/j.cnki.acta.snus.ZR20240130.
LUO Liqin,LI Haixia,WU Shaoyan.Steady-state solutions of a predator-prey model with cross-diffusion and harvesting[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(04):134-146. DOI: 10.13471/j.cnki.acta.snus.ZR20240130.
研究了一类具有 Crowley-Martin 反应函数和捕获项的捕食-食饵交错扩散模型. 首先,利用线性算子的稳定性理论给出了常数稳态解的稳定条件以及交错扩散驱动的 Turing 不稳定条件. 其次,运用能量估计法和 Leray-Schauder 度理论分别讨论了非常数正稳态解的不存在性和存在性. 最后,通过数值模拟对理论结果进行了验证和补充. 研究结果表明交错扩散对正常数稳态解的稳定性和非常数正稳态解的存在性具有非常重要的影响,会引起模型非均匀空间模式的形成,而且采取合理的捕捞策略能确保种群的可持续发展.
A cross-diffusion predator-prey model with Crowley-Martin functional response and harvesting are studied. Firstly, the stable conditions of constant steady-state solutions and the conditions for cross-diffusion-driven Turing instability are obtained by the stability theory of linear operators. Moreover, the nonexistence and existence of non-constant positive steady-state solutions are discussed by using the energy estimation method and Leray-Schauder degree theory. Finally, the theoretical results are varified and supplemented by some numerical simulations. The results indicate that cross-diffusion has very important effects on the stability of constant positive steady-state solution and the existence of non-constant postive steady-state solutions, which can cause the formation of spatial patterns, and reasonable harvesting strategies can ensure the sustainable development of the populations.
李海侠 , 2017 . 一类扩散食物链模型正解的多重性和唯一性 [J]. 中山大学学报(自然科学版) , 56 ( 5 ): 51 - 59 .
李海侠 , 2023 . 一类具有非线性捕获项的捕食-食饵扩散模型正解的稳定性和唯一性 [J]. 应用数学学报 , 46 ( 4 ): 673 - 688 .
裘光明 , 2002 . 数学辞海·第一卷 [M]. 北京 : 中国科学技术出版社 .
杨铜洁 , 张存华 , 2023 . 一类具有交错扩散的捕食者-食饵模型的稳定性分析 [J]. 应用数学 , 36 ( 1 ): 126 - 133 .
ALEBRAHEEM J , 2023 . Predator interference in a predator-prey model with mixed functional and numerical responses [J]. J Math , 2023: 4349573 .
BAEK H , KIM D , 2014 . Dynamics of a predator-prey system with mixed functional responses [J]. J Appl Math , 2014: 536019 .
BIE Q Y , WANG Q R , YAO Z A , 2014 . Cross-diffusion induced instability and pattern formation for a Holling type-II predator-prey model [J]. Appl Math Comput , 247 : 1 - 12 .
GUO G H , WANG J J , 2024 . Pattern formation and qualitative analysis for a vegetation-water model with diffusion [J]. Nonlinear Anal Real World Appl , 76 : 104008 .
LI H X , 2014 . Asymptotic behavior and multiplicity for a diffusive Leslie-Gower predator-prey system with Crowley-Martin functional response [J]. Comput Math Appl , 68 ( 7 ): 693 - 705 .
LI H X , WU J H , LI Y L , et al , 2018 . Positive solutions to the unstirred chemostat model with Crowley-Martin functional response [J]. Discrete Contin Dyn Syst B , 23 ( 8 ): 2951 - 2966 .
LI M , CHEN B , YE H , 2017 . A bioeconomic differential algebraic predator-prey model with nonlinear prey harvesting [J]. Appl Math Model , 42 : 17 - 28 .
LI X , HU G , LU S , 2020 . Pattern formation in a diffusive predator-prey system with cross-diffusion effects [J]. Nonlinear Dyn , 100 ( 4 ): 4045 - 4060 .
LIN C S , NI W M , TAKAGI I , 1988 . Large amplitude stationary solutions to a chemotaxis system [J]. J Differ Equ , 72 ( 1 ): 1 - 27 .
LING Z , ZHANG L , LIN Z G , 2014 . Turing pattern formation in a predator-prey system with cross diffusion [J]. Appl Math Model , 38 ( 21/22 ): 5022 - 5032 .
LOU Y , NI W M , 1996 . Diffusion, self-diffusion and cross-diffusion [J]. J Differ Equ , 131 ( 1 ): 79 - 131 .
LU C , 2022 . Dynamical analysis and numerical simulations on a Crowley-Martin predator-prey model in stochastic environment [J]. Appl Math Comput , 413 : 126641 .
MORTUJA M G , CHAUBE M K , KUMAR S , 2021 . Dynamic analysis of a predator-prey system with nonlinear prey harvesting and square root functional response [J]. Chaos Solitons Fractals , 148 : 111071 .
SINGH A , MALIK P , 2021 . Bifurcations in a modified Leslie-Gower predator-prey discrete model with Michaelis-Menten prey harvesting [J]. J Appl Math Comput , 67 ( 1 ): 143 - 174 .
TIWARI V , TRIPATHI J P , ABBAS S , et al , 2019 . Qualitative analysis of a diffusive Crowley-Martin predator-prey model: The role of nonlinear predator harvesting [J]. Nonlinear Dyn , 98 ( 2 ): 1169 - 1189 .
WEN Z J , 2013 . Turing instability and stationary patterns in a predator-prey systems with nonlinear cross-diffusions [J]. Bound Value Probl , 2013 ( 1 ): 155 .
ZHAO J F , ZHANG H T , YANG J , 2017 . Stationary patterns of a ratio-dependent prey-predator model with cross-diffusion [J]. Acta Math Appl Sin Engl Ser , 33 ( 2 ): 497 - 504 .
ZHU M , LI J , LIAN X Z , 2022 . Pattern dynamics of cross diffusion predator-prey system with strong Allee effect and hunting cooperation [J]. Mathematics , 10 ( 17 ): 3171 .
0
浏览量
57
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621
