3 papers
gr-qc2026
Quasi-normal modes of the Ayón-Beato-GarcÃa black hole surrounded by quintessence
Diego Ariel Sotelo Carrillo, Omar Pedraza, L. A. López +1
We compute the quasi-normal modes of scalar, electromagnetic, and gravitational perturbations of an Ayón-Beato-GarcÃa black hole surrounded by quintessence using the Asymptotic I…
gr-qc2026
Quasi-normal modes and absorption section from regular black holes immersed in perfect fluid dark matter
L. O. Téllez Tovar, Omar Pedraza, L. A. López +1
We study scalar, electromagnetic and gravitational perturbations of three families of regular black holes, Hayward, Bardeen, and Ayon-Beato-GarcÃa immersed in a Perfect Fluid Dark…
math-ph2025
Spectral analysis of Dirac materials in position-dependent magnetic and electric fields via Heun functions
Daniel O-Campa, Omar Pedraza, L. A. López +3
This work focuses on the study of the spectral problem for Dirac materials immersed in position-dependent magnetic and electric fields. To achieve this, the system of differential…