Talk:Gencom

Unimodularity

The extended gencom mapping is only a unimodular matrix, and the inversion ordinary matrix inversion, in the case of the full p-limit.

This is simply false, unless I misunderstand. If you take some group like 2.3.7, you get a unimodular matrix. The matrices don't care what whacky subgroup you pick! – Sintel🎏 (talk) 19:47, 28 April 2025 (UTC)