Automorphism groups of orientable elliptic-hyperelliptic Klein surfaces.
Automorphism groups of polycyclic-by-finite groups and arithmetic groups
We show that the outer automorphism group of a polycyclic-by-finite group is an arithmetic group. This result follows from a detailed structural analysis of the automorphism groups of such groups. We use an extended version of the theory of the algebraic hull functor initiated by Mostow. We thus make applicable refined methods from the theory of algebraic and arithmetic groups. We also construct examples of polycyclic-by-finite groups which have an automorphism group which does not contain an arithmetic...
Automorphism Groups of Posets and Lattices with a Given Subset of Fixed Points.
Automorphism groups of right-angled buildings: simplicity and local splittings
We show that the group of type-preserving automorphisms of any irreducible semiregular thick right-angled building is abstractly simple. When the building is locally finite, this gives a large family of compactly generated abstractly simple locally compact groups. Specialising to appropriate cases, we obtain examples of such simple groups that are locally indecomposable, but have locally normal subgroups decomposing non-trivially as direct products, all of whose factors are locally normal.
Automorphism invariants for semigroups.
Automorphism Towers of Extremal Groups.
Automorphismen nilpotenter proendlicher Gruppen.
Automorphismen und Erzeugende für Gruppen mit einer definierenden Relation.
Automorphismengruppen achtdimensionaler lokalkompakter Quasikörper.
Automorphismengruppen von Gruppen mit endlichen Bahnen gleichmäßig beschränkter Mächtigkeit.
Automorphismes et deformations des varietes de Borel
Automorphisms and abstract commensurators of 2-dimensional Artin groups.
Automorphisms and enumeration of switching classes of tournaments.
Automorphisms fixing every Normal Subgroup of a Nilpotent-by-abelian Group
Automorphisms of a Finite P-Group
Automorphisms of abelian -groups and hypo residual finiteness
Automorphisms of Bounded Abelian Groups.
Automorphisms of Certain Tree.
Automorphisms of completely primary finite rings of characteristic p
A completely primary ring is a ring R with identity 1 ≠ 0 whose subset of zero-divisors forms the unique maximal ideal . We determine the structure of the group of automorphisms Aut(R) of a completely primary finite ring R of characteristic p, such that if is the Jacobson radical of R, then ³ = (0), ² ≠ (0), the annihilator of coincides with ² and , the finite field of elements, for any prime p and any positive integer r.
Automorphisms of Coxeter groups of type .