3 papers
math.GR2003
The Fesenko groups have finite width
Cornelius J Griffin
We prove that the Fesenko Groups, which occur as natural closed subgroups of the Nottingham Group, have finite width and infinite obliquity.
math.NT2002
Associating curves of low genus to infinite nilpotent groups via the zeta function
Cornelius Griffin
It is known from work of du Sautoy and Grunewald in \cite{duSG1} that the zeta functions counting subgroups of finite index in infinite nilpotent groups depend upon the behaviour o…
math.GR2002
Some hereditarily just infinite subgroups of the Nottingham Group
Cornelius Griffin
This work examines the commutator structure of some closed subgroups of the wild group of automorphisms of a local field with perfect residue field, a group we call $\Cal J.$ In pa…