## Some cohomology rings

This is Version 3. It is now obsolete, having been superseded
by Simon
King's computations page in Summer 2008.

This version was meant to supersede Version 2, which was moved from Wuppertal to Jena in Autumn 2008.
Note however that many groups in Version 2 are not covered by Version 3,
and that Version 2 is currently the last version to include information
on the essential ideal.

2-groups
| 5-groups

Information about Benson's test

The small groups of order 2

The small groups of order 4

The small groups of order 8

The small groups of order 16

The small groups of order 32

The small groups of order 64

The small groups of order 128

The small groups of order 256

The small groups of order 512

The small groups of order 5

The small groups of order 25

The small groups of order 125

The small groups of order 625