Physical Essence of Introducing Covariant Derivative into Gauge Theory
规范场论中引进协变导数的物理实质
We obtain two formulas about the covariant derivative of the coordinate functions on the unit sphere in Eucdidean space .
得到了欧氏空间中,单位球面上坐标函数关于某一特定标架场的协变微分的两个等式。