陕西科技大学学报(自然科学版)
陝西科技大學學報(自然科學版)
협서과기대학학보(자연과학판)
Journal of Shaanxi University of Science and Technology (Natural Science Edition)
2015年
5期
186-191
,共6页
捕食-被捕食系统%功能性反应%脉冲收获%持续生存性%周期解
捕食-被捕食繫統%功能性反應%脈遲收穫%持續生存性%週期解
포식-피포식계통%공능성반응%맥충수획%지속생존성%주기해
predator-prey system%functional response%impulsive harvest%persistence%peri-odic solution
主要研究了一类具有扩散及功能性反应的周期脉冲捕食‐被捕食系统,系统由一个具有脉冲的反应扩散方程组描述。首先通过抛物偏微分方程的不变矩形理论获得了解的正性性质,然后利用比较原理研究系统解的有界性及持续生存性质;最后应用紧性准则讨论了系统周期解的存在唯一性及全局渐近稳定性。
主要研究瞭一類具有擴散及功能性反應的週期脈遲捕食‐被捕食繫統,繫統由一箇具有脈遲的反應擴散方程組描述。首先通過拋物偏微分方程的不變矩形理論穫得瞭解的正性性質,然後利用比較原理研究繫統解的有界性及持續生存性質;最後應用緊性準則討論瞭繫統週期解的存在唯一性及全跼漸近穩定性。
주요연구료일류구유확산급공능성반응적주기맥충포식‐피포식계통,계통유일개구유맥충적반응확산방정조묘술。수선통과포물편미분방정적불변구형이론획득료해적정성성질,연후이용비교원리연구계통해적유계성급지속생존성질;최후응용긴성준칙토론료계통주기해적존재유일성급전국점근은정성。
In this paper ,an impulsive predator‐prey system with diffusion and functional re‐sponse is investigated .The system is modeled by a reaction‐diffusion equation with periodic coefficients and impulses .The positive property of the solution is obtained by invariant rec‐tangle of parabolic partial differential equations .Further ,the comparison principle is applied to study the boundedness of the solution and the persistence of the system .Finally ,the condi‐tion to ensure the existence and stability of the periodic solution is obtained by a compactness criterion .