In the classical quasithin case of the quasithin theorem, if a group does not have a "strongly embedded" subgroup, then is a group of Lie-type in characteristic 2 of Lie rank 2 generated by a pair of parabolic subgroups and , or is one of a short list of exceptions.

# Quasithin Theorem

## See also

Lie-Type Group## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Quasithin Theorem."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/QuasithinTheorem.html