16 citations · 36 across the 5 of their papers we have counts for
5 papers
On the center of distances of finite ultrametric spaces
Oleksiy Dovgoshey, Olga Rovenska
The center of distances of a metric space is the set of all for which the equation has a solution for each . We prove the inequ…
Non-parametric reconstruction of the fine structure constant with galaxy clusters
Marcelo Ferreira, Rodrigo F. L. Holanda, Javier E. Gonzalez +2
Testing possible variations in fundamental constants of nature is a crucial endeavor in observational cosmology. This paper investigates potential cosmological variations in the fi…
High-redshift cosmography with a possible cosmic distance duality relation violation
José F. Jesus, Mikael J. S. Gomes, Rodrigo F. L. Holanda +1
In this study, we used geometric distances at high redshifts (both luminosity and angular) to perform a cosmographic analysis with the Padé method, which stabilizes the behaviour o…
Unveiling the Hubble Constant through Galaxy Cluster Gas Mass Fractions
Javier E. Gonzalez, Marcelo Ferreira, Leorando R. Colaço +2
In this work, we obtain Hubble constant () estimates by using two galaxy cluster gas mass fraction measurement samples, Type Ia supernovae luminosity distances, and the validi…
A Hubble Constant Estimate from Galaxy Cluster and type Ia SNe Observations
L. R. Colaço, M. S. Ferreira, R. F. L. Holanda +2
In this work, we constrain the Hubble constant parameter, , using a combination of the Pantheon sample and galaxy clusters (GC) measurements from minimal cosmological assumpti…