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＜電子ブック＞
A Universal Construction for Groups Acting Freely on Real Trees / Ian Chiswell, Thomas Müller
(Cambridge Tracts in Mathematics ; 195)

出版者	Cambridge : Cambridge University Press
出版年	2012
大きさ	1 online resource (297 pages) : digital, PDF file(s)
著者標目	*Chiswell, Ian author Müller, Thomas author
件　名	LCSH:Geometric group theory LCSH:Trees (Graph theory)
一般注記	Title from publisher's bibliographic system (viewed on 11 Nov 2016) The theory of R-trees is a well-established and important area of geometric group theory and in this book the authors introduce a construction that provides a new perspective on group actions on R-trees. They construct a group RF(G), equipped with an action on an R-tree, whose elements are certain functions from a compact real interval to the group G. They also study the structure of RF(G), including a detailed description of centralizers of elements and an investigation of its subgroups and quotients. Any group acting freely on an R-tree embeds in RF(G) for some choice of G. Much remains to be done to understand RF(G), and the extensive list of open problems included in an appendix could potentially lead to new methods for investigating group actions on R-trees, particularly free actions. This book will interest all geometric group theorists and model theorists whose research involves R-trees HTTP:URL=http://dx.doi.org/10.1017/CBO9781139176064

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