Isoperimetric Sandwiches and Approximation by Analytic and Harmonic Functions(Chapman )

等周三明治与解析函数及调和函数的近似

数学史

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出  版 社
出版时间
2024年03月31日
装      帧
精装
ISBN
9781498756365
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页      码
304
开      本
234 x 156 mm (6.14 x 9.21
语      种
英文
版      次
1
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图书简介
The book focuses on a number of results and open problems dealing with a wide variety of isoperimetric inequalities. , this approach can be characterized by a recently coined term "sandwiches". A certain quantity is introduced, usually as a degree of approximation to a given simple function, e.g., z* , |x|^2, by either analytic or harmonic functions in some norm. Then, the estimates from below and above of the approximate distance are obtained in terms of simple geometric characteristics of the set, e.g., area, perimeter, capacity, etc. The resulting "sandwich" yields the isoperimetric inequality.
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