Regular Polytopes

Polytopes are geometrical figures bounded by po...

The Fifty-Nine Icosahedra

Kate and David Crennell produced a third editio...

Unvergängliche Geometrie

Zero-Symmetric Graphs

Zero-Symmetric Graphs: Trivalent Graphical Regu...

The Real Projective Plane

Along with many small improvements, this revise...

The Fifty-Nine Icosahedra

The Fifty-Nine Icosahedra was originally publis...

Generators and Relations for Discrete Groups

When we began to consider the scope of this boo...

Generators and Relations for Discrete Groups

When we began to consider the scope of this boo...

Generators and Relations for Discrete Groups

When we began to consider the scope of this boo...

Projective Geometry

In Euclidean geometry, constructions are made w...

The Real Projective Plane

Along with many small improvements, this revise...

Generators and Relations for Discrete Groups

When we began to consider the scope of this boo...