3 papers
math.LO2025
Structural results on idealistic equivalence relations
Filippo Calderoni, Luca Motto Ros
We address some fundamental problems concerning the structure of idealistic equivalence relations. In particular, we show that, under analytic determinacy, there are continuum many…
math.LO2023
A classification of the Wadge hierarchies on zero-dimensional Polish spaces
Raphaël Carroy, Luca Motto Ros, Salvatore Scamperti
We provide a complete classification, up to order-isomorphism, of all possible Wadge hierarchies on zero-dimensional Polish spaces using (essentially) countable ordinals as complet…
math.LO2010
Beyond Borel-amenability: scales and superamenable reducibilities
Luca Motto Ros
We analyze the degree-structure induced by large reducibilities under the Axiom of Determinacy. This generalizes the analysis of Borel reducibilities given in references [1], [6] a…