A finite presentation of the level $2$ principal congruence subgroup of   $GL(n;\mathbb{Z})$
  It is known that the level $2$ principal congruence subgroup of $GL(n;\mathbb{Z})$ has a finite generating set. In this paper, we give a finite presentation of the level $2$ principal congruence subgroup of $GL(n;\mathbb{Z})$. 
Ryoma Kobayashi
math.GT math.GR