Collected Papers

Algorithms and Classification in Combinatorial Group Theory

In January 1989 a Workshop on Algorithms, Word Problems and Classi­ fication in Combinatorial Gro...

A Course in Mathematical Cryptography

Cryptography has become essential as bank transactions, credit card infor-mation, contracts, and ...

Topics in Combinatorial Group Theory

Combinatorial group theory is a loosely defined subject, with close connections to topology and l...