12 citations · 43 across the 12 of their papers we have counts for
11 papers · 1 filter
Isometry groups of Polish ultrametric spaces
Riccardo Camerlo, Alberto Marcone, Luca Motto Ros
We solve a long-standing open problem, formulated by Krasner in the 1950's, in the context of Polish (i.e. separable complete) ultrametric spaces by providing a characterization of…
Fences, their endpoints, and projective Fraïssé theory
Gianluca Basso, Riccardo Camerlo
We introduce a new class of compact metrizable spaces, which we call fences, and its subclass of smooth fences. We isolate two families of Hasse diagrams…
Polish metric spaces with fixed distance set
Riccardo Camerlo, Alberto Marcone, Luca Motto Ros
We study Polish spaces for which a set of possible distances is fixed in advance. We determine, depending on the properties of , the complexity of the…
Modal operators and toric ideals
Riccardo Camerlo, Giovanni Pistone, Fabio Rapallo
In the present paper we consider modal propositional logic and look for the constraints that are imposed to the propositions of the special type by the structure of the re…
Analytic sets of reals and the density function in the Cantor space
Alessandro Andretta, Riccardo Camerlo
We study the density function of measurable subsets of the Cantor space. Among other things, we identify a universal set for subsets of in ter…
Linear orders: when embeddability and epimorphism agree
Riccardo Camerlo, Raphaël Carroy, Alberto Marcone
When a linear order has an order preserving surjection onto each of its suborders we say that it is strongly surjective. We prove that the set of countable strongly surjective line…