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具可变扩散系数的椭圆-双曲方程组的全局适定性

Global Well-Posedness for an Elliptic-Hyperbolic System with Variable Diffusion Coefficients
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摘要 运用一阶方程的特征值、椭圆方程的Lp估计、不动点方法和延拓法证明了一个具有可变扩散系数的自由边界问题当边界的药物浓度为有界连续函数时存在唯一的全局解. By means of the method of characteristics for first-order equations, the Lp estimate for elliptic equations, the fixed point theorem and the extension method, we proved a free boundary problem with variable diffusion coefficients has a unique global solution if the initial data of the concentration of nutrient is continu- ous bounded function.
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2012年第5期847-853,共7页 Journal of Jilin University:Science Edition
基金 国家科技支撑计划项目(批准号:2006BAD11A08) 吉林农业大学青年科研基金(批准号:201040)
关键词 扩散系数 椭圆-双曲方程组 全局适定性 自由边界问题 肿瘤 存在唯一性 diffusion coefficients elliptic-hyperbolic system global well-posedness free boundary problem tumor existence and uniqueness
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