Preface.- Subgroups of small index in the automorphism groups of free groups and Kazhdan's (T) property.- Dynamics of free group automorphisms.- Geodesic rewriting systems and pregroups.- Reglar sets and counting in free groups.- Twisted conjugacy for virtually cyclic groups and crystallographic groups.- Solving random equations in Garside groups using length functions.- An application of word combinatorics to decision problems in group theory.- Equations and fully residually-free groups.- The F_n-action on the product of the two limit trees for an iwip automorphism.- Mather invariants in groups of piecewise-linear homeomorphisms.- Algebraic geometry over the additive monoid of natural numbers. Systems of coefficient-free equations.- Some graphs related to Thomson's group F.- Generating tuples of virtually free groups.- Limits of (Thompson's) group F.-
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