Minimal presentations of groups
This thesis proposes two new families of counter examples to the celebrated relation gap problem: firstly certain finite-index subgroups of right-angled Artin groups, and secondly groups with torsion arising as free products of HNN extensions of finite abelian groups. We prove a number of results re...
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Imperial College London
2007
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| Online Access: | http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429171 |