Profinite Graphs and Groups

ISBN-13: 9783030104245 / Angielski / Miękka / 2018 / 471 str.

Luis Ribes

Recenzje

"The book has been written with great detail and clarity, so it can be easily read. ... This is one of a kind monograph that will be very useful for graduate students who are interested in profinite groups, as well as for specialists, as an excellent reference book. The book is a welcome contribution to the literature and will undoubtedly stimulate further development of the theory of profinite graphs and profinite groups." (Mikhail Kabenyuk, zbMATH 1457.20001, 2021)
"The book systematically develops fundamentals of the theory of profinite graphs, with emphasis on exhibiting similarities with the Bass-Serre theory of abstract groups acting on abstract trees. As such, it provides a valuable reference for students and researchers in the field." (Primoz Moravec, Mathematical Reviews, 2018)

Spis treści

1 Preliminaries.- Part I Basic Theory.- 2 Profinite Graphs.- 3 The Fundamental Group of a Profinite Graph.- 4 Profinite Groups Acting on C-Trees.- 5 Free Products of Pro-C Groups.- 6 Graphs of Pro-C Groups.- Part II Applications to Profinite Groups.- 7 Subgroups of Fundamental Groups of Graphs of Groups.- 8 Minimal Subtrees.- 9 Homology and Graphs of Pro-C Groups.- 10 The Virtual Cohomological Dimension of Profinite Groups.- Part III Applications to Abstract Groups.- 11 Separability Conditions in Free and Polycyclic Groups.- 12 Algorithms in Free Groups and Monoids.- 13 Abstract Groups vs their Profinite Completions.- 14 Conjugacy in Free Products and in Free-by-finite Groups.- 15 Conjugacy Separability in Amalgamated Products.- Appendix A Abstract Graphs.- Appendix B Rational Sets in Free Groups and Automata.- Bibliography.- Index.