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math.GR2008
Discretely ordered groups
Peter A. Linnell, Akbar H. Rhemtulla, Dale P. O. Rolfsen
We consider group orders and right-orders which are discrete, meaning there is a least element which is greater than the identity. We note that free groups cannot be given discrete…
math.GR2006
Invariant group orderings and Galois conjugates
Peter A. Linnell, Akbar H. Rhemtulla, Dale P. O. Rolfsen
This paper investigates conditions under which a given automorphism of a residually torsion-free nilpotent group respects some ordering of the group. For free groups and surface gr…