Skip to main content

Table 23 Weyl group \(D_{4}\), level 11, elements 0–3

From: Extending Snow’s algorithm for computations in the finite Weyl groups

\(N^{o}\)

Weight

Element

Matrix

Inverse

\(\begin{array}{c} 0 \\ (0) \end{array}\)

−1, −2, −1, 1

\(\begin{array}{c} s_{3}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\( \begin{bmatrix} -1 & 0 & 0 & 0 \\ 0 & -1 & 0 & 0 \\ 0 & 0 & -1 & 0 \\ 0 & -1 & 0 & 1 \end{bmatrix} \)

\(\begin{array}{c} s_{3}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\(\begin{array}{c} 1 \\ (1) \end{array}\)

−1, −2, 1, −1

\(\begin{array}{c} s_{4}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\( \begin{bmatrix} -1 & 0 & 0 & 0 \\ 0 & -1 & 0 & 0 \\ 0 & -1 & 1 & 0 \\ 0 & 0 & 0 & -1 \end{bmatrix} \)

\(\begin{array}{c} s_{4}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\(\begin{array}{c} 2 \\ (2) \end{array}\)

−2, 1, −2, −2

\(\begin{array}{c} s_{4}s_{3}s_{2}s_{4}s_{3}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\( \begin{bmatrix} -1 & 0 & 0 & 0 \\ -1 & 1 & -1 & -1 \\ 0 & 0 & -1 & 0 \\ 0 & 0 & 0 & -1 \end{bmatrix} \)

\(\begin{array}{c} s_{4}s_{3}s_{2}s_{4}s_{3}s_{1}s_{2}s_{4}s_{3}s_{2}s_{1} \end{array}\)

\(\begin{array}{c} 3 \\ (3) \end{array}\)

1, −2, −1, −1

\(\begin{array}{c} s_{4}s_{3}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2} \end{array}\)

\( \begin{bmatrix} 1 & -1 & 0 & 0 \\ 0 & -1 & 0 & 0 \\ 0 & 0 & -1 & 0 \\ 0 & 0 & 0 & -1 \end{bmatrix} \)

\(\begin{array}{c} s_{4}s_{3}s_{2}s_{4}s_{3}s_{2}s_{1}s_{2}s_{4}s_{3}s_{2} \end{array}\)