15 citations · 69 across the 18 of their papers we have counts for
19 papers
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…
Higher amalgamation properties in measured structures
David M. Evans
Using an infinitary version of the Hypergraph Removal Lemma due to Towsner, we prove a model-theoretic higher amalgamation result. In particular, we obtain an independent amalgamat…
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…
EPPA for two-graphs and antipodal metric spaces
David Evans, Jan Hubička, Matěj Konečný +1
We prove that the class of finite two-graphs has the extension property for partial automorphisms (EPPA, or Hrushovski property), thereby answering a question of Macpherson. In oth…
Higher amalgamation properties in stable theories
David M. Evans, Jonathan Kirby, Tim Zander
For a complete, stable theory we construct, in a reasonably canonical way, a related stable theory which has higher independent amalgamation properties over the algebraic…
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…