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pro vyhledávání: '"Santiago, Esteban"'
We present a procedure that transforms a singular, asymptotically flat, static and spherically symmetric black hole into a regular black hole spacetime. The regular black hole is a solution of General Relativity theory coupled to nonlinear electrodyn
Externí odkaz:
http://arxiv.org/abs/2203.03088
It is shown here that symmetric hyperbolicity, which guarantees well-posedness, leads to a set of two inequalities for matrices whose elements are determined by a given theory. As a part of the calculation, carried out in a mostly-covariant formalism
Externí odkaz:
http://arxiv.org/abs/2112.07078
Publikováno v:
In Annals of Physics August 2024 467
Autor:
Maria Celia Iñurrategui, Manuel Rodriguez Tablado, Santiago Esteban, Karin Kopitowski, Claudia Marchitelli, Sergio Adrian Terrasa
Publikováno v:
Evidencia. Actualización en la Práctica Ambulatoria, Vol 27, Iss 1 (2024)
Introducción. Si bien contamos con recomendaciones basadas en la evidencia en contra de realizar tamizaje de cáncer ovárico con ecografía transvaginal debido a que aumenta el riesgo de resultados falsamente positivos y de cascadas diagnósticas,
Externí odkaz:
https://doaj.org/article/9ec2cef97bf64e9dbdba6e9ebf358e52
Autor:
Santiago Esteban, Alejandro Szmulewicz
Publikováno v:
Journal of International Medical Research, Vol 52 (2024)
The target trial framework has emerged as a powerful tool for addressing causal questions in clinical practice and in public health. In the healthcare sector, where decision-making is increasingly data-driven, transactional databases, such as electro
Externí odkaz:
https://doaj.org/article/2bba48d20fcb416b80651adc58a136d3
We present an exact static black hole solution of Einstein field equations in the framework of Horndeski Theory by imposing spherical symmetry and choosing the coupling constants in the Lagrangian so that the only singularity in the solution is at $r
Externí odkaz:
http://arxiv.org/abs/2107.07839
We investigate the creation of scalar particles inside a region delimited by a bubble which is expanding with non-zero acceleration. The bubble is modelled as a thin shell and plays the role of a moving boundary, thus influencing the fluctuations of
Externí odkaz:
http://arxiv.org/abs/2107.05269
In this work the first exact asymptotically flat static and spherically symmetric black hole solution for $(3+1)$-dimensional ESTGB is presented, with a model of nonlinear electrodynamics -- that reduces to Maxwell's theory in the weak field limit an
Externí odkaz:
http://arxiv.org/abs/2010.04858
The dynamical stability of massive thin shells with a given equation of state (EOS) is here compared (both for the barotropic and non-barotropic case) with the results coming from thermodynamical stability. Our results show that the restrictions in t
Externí odkaz:
http://arxiv.org/abs/2006.06766
Autor:
Santiago Esteban Frades
Publikováno v:
Fineduca, Vol 13 (2023)
El artículo se estructura en cuatro apartados. El primero describe cuáles son los condicionantes, determinantes e indicadores de la financiación de la educación obligatoria en España. Entre ellos, se contará con que el modelo de una organizaci
Externí odkaz:
https://doaj.org/article/1e7a8168c7e24b7093180a2cae759ae4