2 papers
math.CO2026
On covering properties of end and ray spaces
Rodrigo Rey Carvalho, Matheus Duzi, Vinicius de Oliveira Rodrigues
We provide new results on combinatorial characterizations of covering properties in end spaces and ray spaces. In particular, we characterize the Lindelöf degree, the extent, the…
math.CO2024
On Products of -sets
Rodrigo Rey Carvalho, Vinicius de Oliveira Rodrigues
We prove the consistency of the existence of a -set whose square is not a -set and that if there is a -set, then there exists a -set whose all finite powers are …