sporadic finite simple group

- group, ∞-group
- group object, group object in an (∞,1)-category
- abelian group, spectrum
- group action, ∞-action
- representation, ∞-representation
- progroup
- homogeneous space

According to the classification of finite simple groups, there are 18 countably infinite families and 26 *sporadic* simple groups. The latter groups do not fit into any systematic classification, but there are a number of links between them. For example, the Monster group $M$, the largest of the sporadic groups, contains all but six (the ‘pariahs’, $J_1, J_3,Ru,ON,Ly,J_4$) of the other sporadic groups as subquotients.

- Robert A. Wilson’s
*The Finite Simple Groups*. Springer, Graduate Mathematics series**251**(2009).

Revised on May 2, 2014 03:33:27
by David Corfield
(129.12.18.18)