A Note on the Reverse Isoperimetric Inequality

被引:13
|
作者
Gao, Xiang [1 ]
机构
[1] E China Normal Univ, Dept Math, Shanghai 200241, Peoples R China
关键词
Fourier series; Isoperimetric inequality; stability;
D O I
10.1007/s00025-010-0056-y
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we derive an improved sharp version of a reverse isoperimetric inequality for convex planar curves of Pan and Zhang (Beitrage Algebra Geom 48:303-308, 2007), with a simpler Fourier series proof. Moreover our result also confirm a conjecture by Pan et al. (J Math Inequal (preprint), 2010). Furthermore we also present a stability property of our reverse isoperimetric inequality (near equality implies curve nearly circular).
引用
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页码:83 / 90
页数:8
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