2 papers
math.LO2026
Universal homogeneous two-sorted ultrametric spaces
Adam BartoÅ¡, WiesÅaw KubiÅ, Aleksandra Kwiatkowska +1
We view ultrametric spaces as two-sorted structures consisting of a set of points and of a linearly ordered set of distances. We call the appropriate notion of embeddings distance-…
math.GN2026
Homogeneity of profinite graphs
WiesÅaw KubiÅ, Wiesław Kubiś, Andrzej Kucharski +2
Profinite graphs are inverse limits of sequences of nonempty finite graphs. There exists a ``generic'' graph $\Pe$ in this category, although its edge relation is rather poor: only…