Parabolic subgroup may refer to:
* a
parabolic subgroup of a reflection group
* a subgroup of an algebraic group that contains a
Borel subgroup
In the theory of algebraic groups, a Borel subgroup of an algebraic group ''G'' is a maximal Zariski closed and connected solvable algebraic subgroup. For example, in the general linear group ''GLn'' (''n x n'' invertible matrices), the subgr ...
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