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三种群食物链模型的非常数正常衡态-unusual normal equilibrium state of three-species food chain model
目录独创性声明...................................................................................................摘要............................................................................................................iiiAbstract.......................................................................................................iii前言...........................................................................................................1§1常微系统平衡点的稳定性分析..................................................................41.1局部稳定性..........................................................................................41.2全局稳定性..........................................................................................7§2反应扩散系统平衡点的稳定性分析............................................................9§3正平衡解的先验估计...............................................................................203.1辅助结果.............................................................................................203.2正常数解的先验估计.............................................................................21§4反应扩散系统非常数正平衡解的不存在性...................................................28§5交错扩散系统非常数正平衡解的存在性......................................................30参考文献......................................................................................................35致谢............................................................................................................38独创性声明本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢的地方外,论文中不包括其他人己经发表或撰写过的研究成果,也不包含为获得西北师范大学或其他教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均己在论文中作了明确的说明并表示了谢意。签名:日期:年月日关于论文使用授权的说明本人完全了解西北师范大学有关保留、使用学位论文的规定,即:学校有权保留送交论文的复印件,允许论文被查阅和借阅:学校可以公布论文的全部或部分内容,可以采用影印、缩印或其他复制于段保存论文。(必威体育官网网址的论文在解密后应遵守此规定)签名:导师签名:日期:年月日摘要本文讨论如下三种群食物链交错扩散模型??ut?d1?u=u(a?v?dw?αu),x∈?,t0,???vt???d2?v=v(?b+u+ew),x∈?,t0,wt?d3?(1+d4v)w=w(?c+du?ev),x∈?,t0,?(M)??u?v?w??ν=?ν=???ν=0,x∈??,t0,?u(x,0)=u0(x)≥0,v(x,0)=v0(x)≥0,w(x,0)=w0(x)≥0,x∈?,其中??RN是具有光滑边界??的有界区域,ν是??上的单位外法向量.全文由五部分组成:
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