由Tetrad 重力理論裡所得到的限制條件和 Ashtekar 的廣義相對 論Hamiltonian 形式所得之限制條件相同。在計算過程中我們選擇time gauge, 不同於 Jacobson 和Smolin所選擇的。 Constraints in Ashtekar's Hamiltonian formulation of general rel- ativity are rederived. These constraints are obtained by choosing the time gauge which is different from the gauge chosen by Jacobson and Smolin.