Stability and blow-up result for a class of a generalized Klein-Gordon equation

IF 2.4 2区 数学 Q1 MATHEMATICS
Claudianor O. Alves , Paulo Cesar Carrião , André Vicente
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引用次数: 0

Abstract

In this paper we prove the existence of solution to a generalized Klein-Gordon equation with damping and source terms. The space derivative part of the main operator is described by a pseudo-differential operator given by Δexp(cΔ), where Δ is the Euclidean Laplace operator and c is a positive constant. To prove the existence solution we introduced an appropriate structure of Hilbert spaces which allows us to use semigroups theory when the damping term is nonlinear. Using the Nehari manifold associated to the stationary problem, we create a stable set S such that, taking the initial data in S, the solution is global and the energy of the problem decay exponentially. In this case the damping is nonlinear and the source term satisfies the general assumption known as Ambrosetti-Rabinowitz condition. Moreover, under some appropriate conditions on the initial data we also prove a blow-up result with the source term subject to the Ambrosetti-Rabinowitz condition. Finally, we also prove a stability result with a more restrictive source term, which allows characterize the pass mountain level of the stationary problem.
一类广义Klein-Gordon方程的稳定性与爆破结果
本文证明了一类具有阻尼和源项的广义Klein-Gordon方程解的存在性。主算子的空间导数部分由伪微分算子- Δexp (- cΔ·)给出,其中Δ为欧几里得拉普拉斯算子,c为正常数。为了证明存在解,我们引入了Hilbert空间的适当结构,当阻尼项为非线性时,该结构允许我们使用半群理论。使用与平稳问题相关的Nehari流形,我们创建了一个稳定集S,这样,取S中的初始数据,解是全局的,问题的能量呈指数衰减。在这种情况下,阻尼是非线性的,源项满足称为Ambrosetti-Rabinowitz条件的一般假设。此外,在初始数据的适当条件下,我们还证明了源项符合Ambrosetti-Rabinowitz条件的爆破结果。最后,我们还证明了一个具有更严格的源项的稳定性结果,该结果可以表征平稳问题的通山水平。
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来源期刊
CiteScore
4.40
自引率
8.30%
发文量
543
审稿时长
9 months
期刊介绍: The Journal of Differential Equations is concerned with the theory and the application of differential equations. The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools. Research Areas Include: • Mathematical control theory • Ordinary differential equations • Partial differential equations • Stochastic differential equations • Topological dynamics • Related topics
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