Algebra Seminar talk
2019-05-10
Wiesław Kubiś
Uniform homogeneity
Abstract:
A structure is homogeneous if every partial isomorphism
between its small (typically: finite or finitely generated)
substructures extends to an automorphism. We shall discuss a stronger
version of this property which we call ``uniform homogeneity". We shall
present examples of countable homogeneous relational structures that are not
uniformly homogeneous.