| C3v | E | 2C3 | 3σv | 线性 / 转动linear, rotations | 二次quadratic |
|---|---|---|---|---|---|
| A1 | 1 | 1 | 1 | z | x²+y², z² |
| A2 | 1 | 1 | −1 | Rz | |
| E | 2 | −1 | 0 | (x, y), (Rx, Ry) | (x²−y², xy), (xz, yz) |
约化可约表示Reduce a representation
输入可约表示在各类上的特征标,按约化公式 \(n_i = \frac{1}{h}\sum_R g_R\,\chi(R)\,\chi_i(R)^{*}\) 求出各不可约表示出现的次数。
Enter the characters of a reducible representation; the reduction formula gives how many times each irreducible representation occurs.