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math.GR2018
A class of digraph groups defined by balanced presentations
Johannes Cuno, Gerald Williams
We consider groups defined by non-empty balanced presentations with the property that each relator is of the form R(x,y), where x and y are distinct generators and R(.,.) is determ…
math.GR2014
The Tits alternative for non-spherical triangles of groups
Johannes Cuno, Jörg Lehnert
Triangles of groups have been introduced by Gersten and Stallings. They are, roughly speaking, a generalisation of the amalgamated free product of two groups and occur in the frame…