关于具有零质量初始数据的对流扩散方程全局解的最优衰减率
On the optimal decay rate of global solutions to the convection-diffusion equation with zero-mass initial data
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中文总结 AI 辅助
研究具有零质量初始数据的对流扩散方程全局解的最优衰减率,建立零质量条件下全局解的改进衰减估计并推导自相似渐近轮廓,给出达到改进衰减率的充要条件,表明衰减率是最优的。
中文摘要 AI 辅助
我们考虑具有零质量初始数据的对流扩散方程全局解的最优衰减率。我们在零质量条件下建立了全局解的改进衰减估计。此外,我们推导了全局解的自相似渐近轮廓。该结果为达到改进衰减率提供了充分必要条件,并表明衰减率是最优的。
英文摘要
We consider the optimal decay rate of global solutions to the convection-diffusion equation with zero-mass initial data. We establish an improved decay estimate of the global solutions under the zero-mass condition. Moreover, we derive a self-similar asymptotic profile of the global solutions. This result shows that the improved decay rate is optimal and provides a necessary and sufficient condition for attaining this decay rate.