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arXiv 2103.11301math.AP
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一类拟线性双曲-抛物血管生成模型扩散波的渐近稳定性

Asymptotic stability of diffusion waves of a quasi-linear hyperbolic-parabolic model for vasculogenesis

Qinging Liu, Hongyun Peng, Zhi-An Wang

摘要:

在这篇文章中,我们推导了在$\R^3$中模拟血管生成的双曲抛物方程组的Cauchy问题的解的大时间分布。通过构造时频李雅普诺夫泛函,利用Fourier能量方法和谱分析,证明了当初始数据在定常基态附近时,Cauchy问题的解在一定的密度依赖压力函数条件下,时间渐近地趋于定常基态附近的线性扩散波,其衰减率为代数衰减率.

英文摘要:

In this paper, we derive the large-time profile of solutions to the Cauchy problem of a hyperbolic-parabolic system modeling the vasculogenesis in $\R^3$. When the initial data are prescribed in the vicinity of a constant ground state, by constructing a time-frequency Lyapunov functional and employing the Fourier energy method and spectral analysis, we show that solution of the Cauchy problem tend time-asymptotically to linear diffusion waves around the constant ground state with algebraic decaying rates under certain conditions on the density-dependent pressure function.

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