15 citations · 69 across the 18 of their papers we have counts for
8 papers · 1 filter
Permutation modules for Ramsey structures
David M. Evans
Suppose is a commutative ring and is a group acting on a set . We consider the -module in the case where is the automorphism group of an -categorical str…
Simplicity of the automorphism groups of generalised metric spaces
David M. Evans, Jan Hubička, Matěj Konečný +2
Tent and Ziegler proved that the automorphism group of the Urysohn sphere is simple and that the automorphism group of the Urysohn space is simple modulo bounded automorphisms. A k…
Permutation monoids and MB-homogeneity for graphs and relational structures
Thomas D. H. Coleman, David M. Evans, Robert D. Gray
In this paper, we investigate the connection between infinite permutation monoids and bimorphism monoids of first-order structures. Taking our lead from the study of automorphism g…
Automorphism groups and Ramsey properties of sparse graphs
David M. Evans, Jan Hubička, Jaroslav Nešetřil
We study automorphism groups of sparse graphs from the viewpoint of topological dynamics and the Kechris, Pestov, Todorčević correspondence. We investigate amenable and extremely a…
Algorithms determining finite simple images of finitely presented groups
Martin R. Bridson, David M. Evans, Martin W. Liebeck +1
We address the question: for which collections of finite simple groups does there exist an algorithm that determines the images of an arbitrary finitely presented group that lie in…
Finite homogeneous geometries
David M. Evans
This paper reproduces the text of a part of the Author's DPhil thesis. It gives a proof of the classification of non-trivial, finite homogeneous geometries of sufficiently high dim…