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  1. NTU Theses and Dissertations Repository
  2. 理學院
  3. 數學系
Please use this identifier to cite or link to this item: http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/69446
Title: 論擴散-競爭型洛特卡-佛爾特拉方程組的3物種行波解研究
Traveling Wave Solutions of Lotka-Volterra Diffusion Competition System with 3-species
Authors: Shun-Chieh Wang
王舜傑
Advisor: 陳俊全
Keyword: 擴散-競爭型洛特卡-佛爾特拉方程組,3物種,行波解,擾動理論,
Lotka-Volterra,3 species,competition,reaction diffusion model,perturbation,iteration,exponential dichotomy,heteroclinic orbit,
Publication Year : 2018
Degree: 碩士
Abstract: 本篇論文是研究 Lotka-Volterra 3 物種競爭的行波解之解的存在性問題,主要是延伸 Kanon 在 1995 年,所證明的雙物種經爭行波解的存在唯一性。我們將證明,在 w 物種與 u,v 物種之間競爭影響力很小時,以及 u-v 物種具有強競爭的情況下,可以利用 Perturbation method 將 2 物種的解擾動一點點,而得到新的帶有 source term 之 2 物種問題的解。但是找到的解勢必要同時滿足三個方程式,所以需要一些 iteration argument 去逼近 3 物種的解。
In this thesis, we study the Lotka-Volterra 3 species competition model. We first introduce the conclusion of existence of 2-species traveling wave solution. Next, the main idea to prove the existence of 3-species traveling wave solution is the perturbation method and the iteration argument. We will prove that when the competition rate between w and both u & v is small enough, other parameters satisfy some suitable condition, then there exist a nontrivial 3-species traveling wave solution.
URI: http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/69446
DOI: 10.6342/NTU201801298
Fulltext Rights: 有償授權
Appears in Collections:數學系

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