Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
841353 | Nonlinear Analysis: Theory, Methods & Applications | 2011 | 13 Pages |
Abstract
This paper is concerned with traveling wave solutions of the equation ∂u∂t=J∗u−u+f(u)onR×(0,∞), where the dispersion kernel JJ is nonnegative and the nonlinearity ff is monostable type. We show that there exists c∗∈Rc∗∈R such that for any c>c∗c>c∗, there is a nonincreasing traveling wave solution ϕϕ with ϕ(−∞)=1ϕ(−∞)=1 and limξ→∞ϕ(ξ)eλξ=1, where λ=Λ1(c)λ=Λ1(c) is the smallest positive solution to cλ=∫RJ(z)eλzdz−1+f′(0). Furthermore, the existence of traveling wave solutions with c=c∗c=c∗ is also established. For c≠0c≠0, we further prove that the traveling wave solution is unique up to translation and is globally asymptotically stable in certain sense.
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Authors
Yu-Juan Sun, Wan-Tong Li, Zhi-Cheng Wang,