1 citations · 2 across the 6 of their papers we have counts for
6 papers
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 R…
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 -set…
Diamond on ladder systems and countably metacompact topological spaces
Rodrigo Carvalho, Tanmay Inamdar, Assaf Rinot
The property of countable metacompactness of a topological space gets its importance from Dowker's 1951 theorem that the product of a normal space X with the unit interval is again…
A counterexample related to a theorem of Komjath and Weiss
Rodrigo Carvalho, Assaf Rinot
In a paper from 1987, Komjath and Weiss proved that for every regular topological space of character less than , if , then $X\rightarrow…
Partitions of topological spaces and a new club-like principle
Rodrigo Carvalho, Gabriel Fernandes, Lúcia R. Junqueira
We give a new proof of the following theorem due to W. Weiss and P. Komjath: if is a regular topological space, with character and $X \rightarrow (top ω+ 1)^{…
Structure recovery for partially observed discrete Markov random fields on graphs under not necessarily positive distributions
Florencia Leonardi, Rodrigo R. S. Carvalho
We propose a penalized pseudo-likelihood criterion to estimate the graph of conditional dependencies in a discrete Markov random field that can be partially observed. We prove the…