Linear classical group
A group of non-singular linear transformations of a finite-dimensional vector space over a skew-field that is a classical group (see also Linear group). The most important types of linear classical groups are the following: the general linear group , the special linear group and the unitary group (where and is a Hermitian or skew-Hermitian form on , relative to an involution of ). When is also commutative, special important cases are: the symplectic group and the orthogonal group ( a quadratic form on and of characteristic not 2).
Linear classical group. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Linear_classical_group&oldid=11422