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有心2-环绕系统中心距离的几何不等式
Geometric Inequalities Involving the Central Distance of the Centered 2-Surround System
【摘要】 定义了无心2-环绕系统S(m){Γ,A,A+,l}和有心2-环绕系统S(2){P,Γ,A,A+,l}.借助于等周不等式理论对于有心2-环绕系统建立了如下的一类几何不等式.
【Abstract】 We define the noncentral 2-surround system Sm{Γ,A,A+,l} and the cen- tered 2-surround system S2 {P,Γ,A,A+,l}.For S2 {P,Γ,A,A+,l},by means of the theories of the isoperimetric inequality,we establish a class of geometric inequalities as follws
【关键词】 有心2-环绕系统;
中心距离;
Jordan闭曲线;
【Key words】 centered 2-surround system; central distance; Jordan closed curve;
【Key words】 centered 2-surround system; central distance; Jordan closed curve;
【基金】 国家自然科学基金(10671136);四川省教育厅自然科学重点项目基金(07ZA207)
- 【文献出处】 数学学报 ,Acta Mathematica Sinica , 编辑部邮箱 ,2008年04期
- 【分类号】O178
- 【被引频次】1
- 【下载频次】61