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過去の記録 ～04/23｜次回の予定｜今後の予定 04/24～
2010年02月23日(火)
14:00-15:00 数理科学研究科棟(駒場) 122号室
Bendong LOU 氏 (同済大学)
Homogenization Limit and Singular Limit of the Allen-Cahn equation
Bendong LOU 氏 (同済大学)
Homogenization Limit and Singular Limit of the Allen-Cahn equation
[ 講演概要 ]
We consider the Allen-Cahn equation in a cylinder with periodic undulating boundaries in the plane. Our problem involves two small parameters $\\delta$ and $\\epsilon$, where $\\delta$ appears in the equation to denote the scale of the singular limit and $\\epsilon$ appears in the boundary conditions to denote the scale of the homogenization limit. We consider the following two limiting processes:
(I): taking homogenization limit first and then taking singular limit;
(II) taking singular limit first and then taking homogenization limit.
We formally show that they both result in the same mean curvature flow equation, but with different boundary conditions.
We consider the Allen-Cahn equation in a cylinder with periodic undulating boundaries in the plane. Our problem involves two small parameters $\\delta$ and $\\epsilon$, where $\\delta$ appears in the equation to denote the scale of the singular limit and $\\epsilon$ appears in the boundary conditions to denote the scale of the homogenization limit. We consider the following two limiting processes:
(I): taking homogenization limit first and then taking singular limit;
(II) taking singular limit first and then taking homogenization limit.
We formally show that they both result in the same mean curvature flow equation, but with different boundary conditions.
