1.Some geometric inequalities for the radii of escribed spheres of a simplex
关于单形旁切球半径的几何不等式
2.Two inequalities about radius of escribed circle and bisector of angle
关于旁切圆半径和角平分线的两个不等式
3.About an Inequality Link of Escribed Circle Radius
一个有关旁切圆半径的不等式链