It ' s a general method to construct the symmetry adapted bases of point groups . it has the advantage that the algebraic solutions of point groups can be obtained and the solutions are independent of representation space 它是寻找点群不可约表示的一般方法，不依赖于具体的表示空间，可以得到点群表示的代数解，特别适用于构造分子的对称基。
