He also made major contributions to the theory of discrete groups and their representations.

The enemy in Iraq is not some discrete group of killers.

"Still, it would be inappropriate to call any discrete group of these six species a collective," Seven insisted.

As such, they are similar to the group ring associated to a discrete group.

Exactly the same results remain true if Γ is allowed to be any countable discrete group.

The genus includes a discrete group of plants with similar morphologies.

We can therefore view any discrete group as a 0-dimensional Lie group.

The species apparently form several discrete groups, at least one of which does certainly not belong here.

In discrete groups, several areas of geometry came together to produce exciting new fields.

If G is a discrete group then every set is harmonious.