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arXiv 2007.05725math.APmath.OC
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二维域的主eigenvalue的最优一维结构

Optimal one-dimensional structures for the principal eigenvalue of two-dimensional domains

Giuseppe Buttazzo, Francesco Paolo Maiale

摘要:

考虑了一个形状最优化问题,它是由一维加强筋对薄膜的最佳加强或由"导线“对二维物体的最快冷却引起的。我们考虑的标准是最大化的第一个特征值和容许类的选择是一个一维集与规定的总长度,或一个连接的约束(或连接组件的先验有界数量)被添加。相应的松弛问题和相关的存在性结果进行了描述。

英文摘要:

A shape optimization problem arising from the optimal reinforcement of a membrane by means of one-dimensional stiffeners or from the fastest cooling of a two-dimensional object by means of ``conducting wires'' is considered. The criterion we consider is the maximization of the first eigenvalue and the admissible classes of choices are the one of one-dimensional sets with prescribed total length, or the one where the constraint of being connected (or with an a priori bounded number of connected components) is added. The corresponding relaxed problems and the related existence results are described.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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