Free Groups and Their Subgroups
Automorphisms of free groups
Abstract length functions
Representations of free groups
Free products with amalgamation
Fox calculus, relation matrices, connections with cohomology
The Reidemeister-Schreier method
Groups with a single defining relator
Magnus' treatment of one-relator groups
Planar groups with reflections
Coset diagrams and permutation representations
Free Products and HNN Extensions
Higman-Neumann-Neumann extensions and free products with amalgamation
The Higman embedding theorem
Algebraically closed groups
Small Cancellation Theory
The small cancellation hypotheses
Dehn's algorithm and Greendlinger's lemma
Applications to knot groups
The theory over free products
Small cancellation products
Small cancellation theory over free products with amalgamation and HNN extensions.
