论文标题
改进了第五阶溶液分析性的半径KDV-BBM模型的下限
Improved Lower Bound for the Radius of Analyticity of Solutions to the fifth order KdV-BBM model
论文作者
论文摘要
我们表明，对于大型$ t $，对于第五阶kdv-bbm方程的时间$ t $，在时间$ t $上的空间分析性$σ（t）$的均匀半径不能更快地衰减速度。这改善了Belayneh，Tegegn和第三作者的最新结果，他们在$ t $ $ t $中获得了$ 1/t $衰减的$σ（t）$。
We show that the uniform radius of spatial analyticity $σ(t)$ of solutions at time $t$ to the fifth order KdV-BBM equation cannot decay faster than $1/ \sqrt{t}$ for large $t$, given initial data that is analytic with fixed radius $σ_0$. This improves a recent result by Belayneh, Tegegn and the third author, where they obtained a $1/t$ decay of $σ(t)$ for large time $t$.
