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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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| File | Size | Format | |
|---|---|---|---|
| ntu-107-1.pdf Restricted Access | 729.65 kB | Adobe PDF |
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