404 citations
- L. Herrera3 profiles69 · h 40
- A. Font2 profiles27 · h 40
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- J. Ospino21 · h 18
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- Instituto Venezolano de Investigaciones CientíficasVE36 papers
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- Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et AtmosphèresFR11 papers
283 papers
Latin American HECAP Physics Briefing Book 2025
Mario A. Acero, Alexis A. Aguilar-Arevalo, Belén Andrada +24
The first process for the Latin American Strategy Forum for Research Infrastructure for High Energy, Cosmology and Astroparticle Physics (LASF4RI-HECAP) came to a conclusion in Oct…
Traversable ghost wormholes
Alberto Guilabert, Ernesto Fuenmayor, Pedro Bargueño +1
Ghost stars are compact configurations characterized by an arbitrarily small total mass. Such objects require regions of negative energy density -a condition typically regarded as…
Gravitational Effects of Sources Inspired by ideal Electromagnetic Fields in Spherical Painlevé-Gullstrand Coordinates
G. Abellán, N. Bolívar, I. Vasilev
We construct and analyze a class of static spherically symmetric spacetimes in general relativity sourced exclusively by classical electrostatic configurations. Using a spherically…
Hyperbolic Casimir-like wormhole
Roberto Avalos, Ernesto Contreras, Daniel Brito +1
We present a systematic study of exact solutions for traversable wormhole geometries in a static and hyperbolic symmetric spacetime. In the conventional form of studying wormhole g…
The set of minimal distances of the monoid of plus-minus weighted zero-sum sequences and applications to the characterization problem
Kamil Merito, Oscar Ordaz, Wolfgang Schmid
Recently a systematic investigation of monoids of sequences of plus-minus weighted zero-sum sequences had been started, which is among others motivated by applications to monoids o…
Axially symmetric ghost stars
L. Herrera, J. L. Hernandez-Pastora, J. Ospino +1
We present static axially symmetric fluid distributions not producing gravitational field outside their boundaries (i.e. fluid sources which match smoothly on the boundary surface…