The projective special linear group
is the Group obtained from the Special Linear Group on factoring by the Scalar Matrices contained in that Group. It is
Simple for except for

and is therefore also denoted .

**References**

Conway, J. H.; Curtis, R. T.; Norton, S. P.; Parker, R. A.; and Wilson, R. A.
``The Groups , ,
, and
.'' §2.1 in
*Atlas of Finite Groups: Maximal Subgroups and Ordinary Characters for Simple Groups.* Oxford, England:
Clarendon Press, p. x, 1985.

© 1996-9

1999-05-26