Hi,
I would like to do semidirect product of PGL(3,4) with Z_2. The homomorphism
phi: z_2 --> Aut(PGL(3,4) is defined as follows. phi(-1)(A) = (A^{-1})^t. That
is A inverse transpose.
If I can directly find the projective semilinear group P Gamma L(3,4)
using sage, then it is very helpfull
http://groupprops.subwiki.org/wiki/Projective_semilinear_group
Thank you in advance..
sajith.
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