摘 要:
在全空间R^2上讨论了一类非线性抛物方程解的渐近性态.通过利用Laplace算子的谱分解方法及其分数幂,证明了当初值u0仅仅满足条件u0∈L^2(R^2)时,其解在L^2(R^2)范数意义下渐近收敛于零,即||u(t)||L^2(R^2)→0,当t→∞时.[著者文摘]
文章出处:
Journal of Central China Normal University(Natural Sciences)
文献标识码:
A
文章编号:
1000-1190(2007)01-0005-03
Asymptotic for solutions of nonlinear parabolic equation in two-dimensional whole spaces
GAO Yongdong (Department of Mathematics, Xianning College, Xianning, Hubei 437100)
Abstract:
This paper is concerned with the decay properties for solutions of the nonlinear parabolic equations in two-dimensional whole spaces R^2. With the aid of spectral decomposition methods and fractional powers of Laplace operator, the paper proves that if the initial data u0 only satisfies uo ∈ L^2 (R^2), then the solution in L^2(R^2) norm converges asymptotically to 0, i.e. || u(t) || L^2(R^2)→0, as t→∞.[著者文摘]
Key words:
asymptotic spectral decomposition nonlinear parabolic equations
收稿日期: 2006-05-20
基金资助:
国家自然科学基金重点项目(10431060);咸宁学院重点科研项目(KL0524).

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