arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.03199math.APmath.OC
收藏

具有非线性产生的二维化学排斥模型

On a bi-dimensional chemo-repulsion model with nonlinear production

Francisco Guillén-González, Exequiel Mallea-Zepeda, Élder J. Villamizar-Roa

摘要:

本文研究了具有非线性生产模型的抛物型化学排斥问题:$$ \left\{ \begin{array}{rcl} \partial_tu-Δu&=&\nabla\cdot(u\nabla v),\\ \partial_tv-Δv+v&=&u^p+fv\, 1_{Ω_c}. \end{array} \right. $$该问题涉及到一个双线性控制问题,其中状态$(u,v)$分别为细胞密度和化学品浓度,控制$f$在化学方程中以双线性型形式作用.对于$2D$域,我们首先考虑二次信号产生($p=2$)的情形,证明了每个控制的全局强状态解的存在唯一性和全局最优值的存在性.然后利用拉格朗日乘子定理导出了任意局部最优值的最优性系统,证明了拉格朗日乘子的正则性。最后,我们考虑信号产生$u^p$与$1<p<2$的情况。

英文摘要:

In this paper, we study the following parabolic chemo-repulsion with nonlinear production model: $$ \left\{ \begin{array}{rcl} \partial_tu-Δu&=&\nabla\cdot(u\nabla v),\\ \partial_tv-Δv+v&=&u^p+fv\, 1_{Ω_c}. \end{array} \right. $$ This problem is related to a bilinear control problem, where the state $(u,v)$ is the cell density and the chemical concentration respectively, and the control $f$ acts in a bilinear form in the chemical equation. For $2D$ domains, we first consider the case of quadratic signal production ($p=2$), proving the existence and uniqueness of global strong state solution for each control, and the existence of global optimum solution. Afterwards, we deduce the optimality system for any local optimum via a Lagrange multiplier Theorem, proving regularity of the Lagrange multipliers. Finally, we consider the case of signal production $u^p$ with $1<p<2$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑