Results 71 to 80 of about 166,026,527 (169)

Exotic behaviour of infinite hypermaps

open access: yes, 2008
This is a survey of infinite hypermaps, and of how they can be constructed by using examples and techniques from combinatorial group theory, with particular emphasis on phenomena which have no analogues for finite hypermaps.
Jones, Gareth Aneurin
core   +1 more source

Topological groups, automorphisms of infinite graphs and a theorem of Trofimov

open access: yesDiscrete Mathematics, 1998
This paper gives a short proof of a theorem of Trofimov about locally finite infinite graphs. The theorem is that the subgroup of bounded automorphisms is vertex-transitive if and only if the graph has a system of imprimitivity with finite blocks such that the group induced on the blocks is a free finitely generated abelian group.
openaire   +2 more sources

A note on groups with just-infinite automorphism groups

open access: yes, 2012
An infinite group is said to be just-infinite if all its proper homomorphic images are finite.We investigate the structure of groups whose full automorphism group is just ...
DE GIOVANNI, FRANCESCO, D. Imperatore
openaire   +2 more sources

Splittings and automorphisms of relatively hyperbolic groups

open access: yes, 2014
Minor modifications. To appear in Geometry Groups and Dynamics.International audienceWe study automorphisms of a relatively hyperbolic group G. When G is one-ended, we describe Out(G) using a preferred JSJ tree over subgroups that are virtually cyclic or
Levitt, Gilbert   +3 more
core   +1 more source

Hereditary conjugacy separability of right angled Artin groups and its applications

open access: yes, 2012
We prove that finite index subgroups of right angled Artin groups are conjugacy separable. We then apply this result to establish various properties of other classes of groups.
Minasyan, Ashot
core   +1 more source

Lie algebras: infinite generalizations and deformations [PDF]

open access: yes, 1990
There are many applications of Lie algebras to theoretical physics. This thesis is a study of some new mathematical structures which also are applicable to current physical ideas.
Fletcher, Paul, Fletcher, P
core  

Equivariant affine line bundles and linearization [PDF]

open access: yes, 1996
We show that every algebraic action of a linearly reductive group on affine n-space C^n which is given by Jonqui`ere automorphisms is linearizable. Similarly, every holomorphic action of a compact group K by (holomorphic) Jonquière automorphisms is ...
Frank Kutzschebauch   +3 more
core  

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