Universidade Federal da Integração Latino-Americana

output

20132026

most citedAnomalous diffusion: A basic mechanism for the evolution of inhomogeneous systems

186 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing astro-ph.COShow all

3 papers · 1 filter

astro-ph.CO2026

Statistical consistency of sign-switching vacuum energy with cosmological observations

Sehjal Khandelwal, Abraão J. S. Capistrano, Suresh Kumar

We assess dataset agreement and late-time predictive adequacy in $Λ$ CDM and its sign-switching extension, $Λ_{s}$ CDM, using a suite of Gaussian and exact non-Gaussian consisten…

astro-ph.CO2026

Probing dynamical dark energy with late-time data: Evidence, tensions, and the limits of the $w_{0} w_{a}$ CDM framework

Tengpeng Xu, Suresh Kumar, Yun Chen +2

We test the dynamical dark-energy $w_{0} w_{a}$ CDM (CPL) framework against $Λ$ CDM using CMB anisotropies and lensing together with DESI DR2, SDSS-IV, transverse/angular BAO (BAOtr), and…

astro-ph.CO2023★ 8 cited

Exploring Modified Gravity: Constraints on the $μ$ and $Σ$ Parametrization with WMAP, ACT, and SPT

Uendert Andrade, Abraão J. S. Capistrano, Eleonora Di Valentino +1

The cosmic acceleration problem remains one of the most significant challenges in cosmology. One of the proposed solutions to this problem is the modification of gravity on large s…

Statistical consistency of sign-switching vacuum energy with cosmological observations

Probing dynamical dark energy with late-time data: Evidence, tensions, and the limits of the w0​wa​CDM framework

Exploring Modified Gravity: Constraints on the μ and Σ Parametrization with WMAP, ACT, and SPT

Probing dynamical dark energy with late-time data: Evidence, tensions, and the limits of the $w_{0} w_{a}$ CDM framework

Exploring Modified Gravity: Constraints on the $μ$ and $Σ$ Parametrization with WMAP, ACT, and SPT