涉及两个单形的几何不等式

本文建立了涉及两个单形一个几何不等式,并应用它得到单形的一些几何不等式。     

涉及两个n维单形的四类不等式

给出了涉及两个n维单形的棱长、体积与外接球半径的四类不等式,从而推广和改进了相关文献的结果.     

Some Inequalities for Two Simplices

In this paper, we establish some inequalities for two n-dimensional simplices in the n-dimensional Euclidean space E ⁿ .     

涉及两个单形的几何不等式及应用

建立了涉及两个n维单形的几个不等式,推广了一些重要几何不等式.     

Inequalities for Edge Lengths and Volumes of Two Simplexes

In this paper, a class of geometric inequalities for the edge lengths and volumes of two n-dimensional simplexes are established. As a corollary, a generalization to several dimensions of the Neuberg–Pedoe inequality is given.     

A Circumradius-Inradius Identity and an Identity Relating Volumes for a Simplex

We establish an identity for an n-dimensional simplex relating the circumradius and the inradius, and an identity relating its volume and the pedal volume. As applications, we derive some known inequalities for simplices and generalizations of such inequalities.     

Notes on Two Geometric Inequalities for a Finite Set of Points

Two geometric inequalities for a finite set of points were established in Geom. Dedicata 62 (1996), 157--160. In this paper, we point out a computational mistake in that paper, and give corrections to two geometric inequalities.     

涉及两个n维单形的两类不等式

本文给出了涉及两个 n维单形的两类不等式 ,并得到了两个推论 .     

关于单形的几个含参几何不等式

本给出了ｎ维欧氏空间中ｎ维单形的三个几何含参不等式,它们比目前出现的不等式更具一般性。     

关于n维单形的几个几何不等式

建立了关于n维单形的几个几何不等式,并给出了它们的一些应用.     

关于Veljan-Korchmaros不等式的改进及应用

推广了Veljan—Korchmaros不等式，并应用它推广了n维Euler不等式．     

关于内接单形的一个几何不等式

本文建立了n维单形Ωn与其内接单形Ω′n的外接球半径和内切球半径的一个几何不等式，它包含了n维Euler不等式。     

涉及两个单形顶点间距离的几个不等式

建立了涉及两个单形顶点间距离的一类几何不等式.作为其应用,获得了三角形中R.R.Janic不等式的高维推广.     

Several Inequalities Involving Two Simplexes and Interior Points

This article establishes several new geometric inequalities, which refer to the lengthes of the edges of a simplex and interior point, height, lateral area, and the circumradius of another simplex.     

Klamkin不等式的进一步改进

利用n维欧民空间E^n中的一个几何恒等式,给出了Klamkin不等式在E^n中进一步改进。     

一类涉及两个单形的不等式及应用

本文给出了一类涉及两个单形的三角不等式，作为其应用；可以导出文［１］的主要结果，特别地可以证明文［５］提出的一个猜想．     

关于单形的几个不等式及其应用

Using theory of distance geometry and analytic method, the problem on relations about the volumes of some simplices is studied, and some new inequalities for the volumes of simplices are established. As special cases, an inequality for the volume of the pedal simplex of a simplex and other inequalities for simplices are gotten.     

Comparison Theorems on Convex Hypersurfaces in Hadamard Manifolds

In a Hadamard manifold with sectional curvaturebounded from below by –k ₂ ², we give sharp upper estimates for the difference circumradius minus inradiusof a compact k ₂-convex domain, and we getalso estimates for the quotient (Total d-mean curvature)/Area of a convex domain.     

单形中的两个几何不等式(英文)

给出了n维欧氏空间中关于单形的n-1维体积与单形内部任意一点到所对界面的距离的两个不等式.     

涉及单形内点的几何不等式

建立了涉及n维单形内点的两个几何不等式，作为其特例得到n维Euler不等式的推广。