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A remarkable family of left orderable gorups: central extensions of Hecke groups.

Втр, 09/29/2009 - 15:21 — SomNambul
Authors: Andrés Navas
Subjects: Group Theory
link: http://arxiv.org/abs/0909.4994
Abstract

Central extensions of Hecke groups are shown to admit left-orderings with a
finitely generated positive cone.