Where best to hold a drum fast

被引:11
作者
Cox, SJ
Uhlig, PX
机构
[1] Rice Univ, Dept Computat & Appl Math, Houston, TX 77005 USA
[2] St Marys Univ, Dept Math, San Antonio, TX 78228 USA
关键词
membrane; eigenvalue; Robin; mixed; optimal design;
D O I
10.1137/S1052623497326083
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
If we are allowed to fasten, say, one half of a drum's boundary, which half produces the lowest or highest bass note? The answer is a natural limit of solutions to a family of extremal Robin problems for the least eigenvalue of the Laplacian. We produce explicit extremizers when the drum is a disk while for general shapes we establish existence and necessary conditions, and we build and test a pair of numerical methods.
引用
收藏
页码:948 / 964
页数:17
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