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math.LO2018★ 1 cited
Two Fraïssé-style theorems for homomorphism-homogeneous relational structures
Thomas D. H. Coleman
In this paper, we state and prove two Fraïssé-style results that cover existence and uniqueness properties for twelve of the eighteen different notions of homomorphism-homogeneity…
math.GR2018★ 1 cited
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…