[GAP Forum] represent elements of Weyl groups or affine Weyl groups in terms of matrics

Jianrong Li lijr07 at gmail.com
Wed Oct 30 11:04:28 GMT 2013


Dear Forum,

Let s_1, ..., s_n be simple reflections. w=s_{i_1}...s_{i_k} be an element
of Weyl group. Is there some function in GAP which can produce the matrix
expression of w? Thank you very much.

Best wishes,
Jianrong.


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