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ASYMPTOTIC DYNAMICS OF A SYSTEM OF CONSERVATION LAWS FROM CHEMOTAXIS

机译:趋化性趋化规律的渐近动态

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This paper is devoted to the analytical study of the long-time asymptotic behavior of solutions to the Cauchy problem of a system of conservation laws in one space dimension, which is derived from a repulsive chemo-taxis model with singular sensitivity and nonlinear chemical production rate. Assuming the H~2-norm of the initial perturbation around a constant ground state is finite and using energy methods, we show that there exists a unique global-in-time solution to the Cauchy problem, and the constant ground state is globally asymptotically stable. In addition, the explicit decay rates of the solutions to the chemically diffusive and non-diffusive models are identified under different exponent ranges of the nonlinear chemical production function.
机译:本文致力于在一个空间尺寸的保护规律系统中对核心问题的长期渐近行为的分析研究,其源自具有奇异敏感性和非线性化学生产率的排斥性化疗模型 。 假设恒定地位周围的初始扰动的H〜2-2-2-2-2-norm是有限的,并且使用能量方法,我们表明存在对Cauchy问题的独特全局解决方案,并且恒定的地面状态是全球渐近的稳定性 。 此外,在非线性化学生产功能的不同指数范围下鉴定了化学漫射和非漫射模型的解的明确衰减速率。

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