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瞬时点源分数阶超常扩散的浓度分布 被引量:6

The Concentration Distribution of Fractional Anomalous Diffusion Caused by an Instantaneous Point Source
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摘要  利用质量守恒条件、解的时空相似性、Mellin变换以及Fox函数理论,给出n维空间中(n=1,2,3)瞬时点源分数阶超常扩散浓度分布的Fox函数表示及解析表达式。 The Fox function expression and the analytic expression for the concentration distribution of fractional anomalous diffusion caused by an instantaneous point source in n_dimensional space(n=1,2 or 3)are derived by means of the condition of mass conservation,the time_space similarity of the solution,Mellin transform and the properties of the Fox function.And the asymptotic behaviors for the solutions are also given.
出处 《应用数学和力学》 CSCD 北大核心 2003年第11期1151-1156,共6页 Applied Mathematics and Mechanics
基金 国家自然科学基金资助项目(10272067) 教育部博士点基金资助项目(1999042211)
关键词 瞬时点源 超常扩散 分数阶微积分 Fox函数 Mellin变换 instantaneous point source anomalous diffusion fractional calculus Fox function Mellin transform
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