A property of the variety of 2-Engel groups
A radical for free groups
A reconstruction theorem for locally moving groups acting on completely metrizable spaces
Let G be a group which acts by homeomorphisms on a metric space X. We say the action of G is locally moving on X if for every open U ⊆ X there is a g ∈ G such that g↾X ≠ Id while g↾(X∖U) = Id. We prove the following theorem: Theorem A. Let X,Y be completely metrizable spaces and let G be a group which acts on X and Y with locally moving actions. If the orbits of the action of G on X are of the second category in X and the orbits of the action of G on Y are of the second category...
A Reducibility Arising from the Boone Groups.
A relation between dimension of the harmonic measure, entropy and drift for a random walk on a hyperbolic space.
A Relative cohomological invariant for group pairs.
A remark about central automorphisms of groups
A remark on growth relation.
A remark on radical-semisimple classes of fully ordered groups
A remark on subgroups of infinite index in Poincaré duality groups.
A remark on the intersection of the conjugates of the base of quasi-HNN groups.
A remark on the irreducible characters and fake degrees of finite real reflection groups.
A Root System for the Lyons Group.
A short proof of a theorem of Brodskii.
A short proof, using graphs and groupoids, is given of Brodskii’s theorem that torsion-free one-relator groups are locally indicable.
A Short Proof of a Theorem of Burns.
A simple proof of Vinogradov’s theorem on the orderability of the free product of -groups
A spelling theorem for staggered generalized 2-complexes, with applications.
A splitting theorem for linear polycyclic groups.
A Stiefel complex for the orthogonal group of a field.
A Strengthened Freiheitssatz.