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姓名 陳冠朋(Kuan-peng Chen)  查詢紙本館藏   畢業系所 數學系
論文名稱 某類網格型微分方程行波解的存在性,唯一性及穩定性
(Existence, Uniqueness and Asymptotic Stability of Traveling Wave Solutions for Some Lattice Differential Equations)
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摘要(中) 在這篇論文,我們考慮以下的網格型微分方程$$u’’_n(t)=-g(u_n(t))+lambda f(u_n(t))+sumlimits_{Ngeq|i|geq0}d_iu_{n-i}(t)$$在$(0,infty )$而且$ninBbb Z$,$f$,$gin C^1$,$g$是非遞減函數以及$f$是非線性monostable型。根據[7]和[9]的方法,存在critical speed $c_0$,且使得所有$c>c_0>0$,我們證明存在唯一的行波解。此外,我們也研究介於$0$和$1$之間行波解的漸近穩定性。
摘要(英) In this thesis, we consider the following lattice differential equation $$u’’_n(t)=-g(u_n(t))+lambda f(u_n(t))+sumlimits_{Ngeq|i|geq0}d_iu_{n-i}(t)$$ on $(0,infty )$ with $ ninBbb Z$, where $f,gin C^1$,$g$ is non-decreasing and $f$ is a monostable-type nonlinearity. Following the ideas of [7] and [9], we also show the existence of a critical speed $c_0>0$ such that for all $c>c_0>0$, there exists a unique traveling wave solution of the equations. Furthermore, we also study the asymptotic stability of traveling wave solutions which are bounded between $0$ and $1$.
關鍵字(中) ★ 存在性
★ 唯一性
★ 漸近穩定性
★ 行波解
★ monostable
★ 下解
★ 上解
關鍵字(英) ★ asymptotic stability
★ uniqueness
★ existence
★ monostable
★ supersolution
★ subsolution
★ traveling wave solutions
論文目次 中文摘要...............................................i
英文摘要..............................................ii
Contents.............................................iii
Abstract...............................................1
1 Introduction........................................2
2 Existence of traveling waves........................3
2.1 Construction of subsolutions......................6
2.2 Construction of supersolutions....................9
3 Uniqueness of traveling wave solutions.............12
4 The initial value problem..........................14
5 Asymptotic stability of traveling wave solutions...22
References............................................27
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指導教授 許正雄(Cheng-hsiung Hsu) 審核日期 2008-6-20
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