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2004 •
In the framework of string-inspired dilatonic gravity theories (from 4 to $D$ space-time dimensions), we construct new non-asymptotically flat black hole or black brane solutions. For particular values of the dilatonic coupling constant, we generalize static solutions to rotating ones, using the target space isometry group. We compute their masses and their angular momentum using the modern approach to the
2012 •
The main interest of the work exposed in this thesis is to explore hairy black holes in a more general framework than General Relativity by taking into account the presence of a cosmological constant, of higher dimensions, of exotic matter fields or of higher curvature terms. These extensions to General Relativity can be derived in the context of String Theory. It is also by studying natural extensions to General Relativity that we can more deeply understand the theory of Einstein. Firstly, we will display the theory of General Relativity with its building blocks in particular and we will give the mathematical tools that we need afterwards. Then, a first extension will be detailed with the introduction of higher dimensions and p-form fields which constitute the natural generalization of the electromagnetic interaction. We will build in this framework new static black hole solutions where p-form fields allow to shape the geometry of the horizon. Secondly, we will present the general extension of Einstein theory in any dimension which produces second order field equations: Lovelock theory. We will determine in this context a large class of solutions in dimension 6 for which the theory is reduced to Einstein-Gauss-Bonnet theory with the presence of p-form fields. Thirdly, we will study a generalization of General Relativity in dimension 4 whose modification is induced by a conformally coupled scalar field. We will namely exhibit a new black hole solution with a flat horizon in the presence of axionic fields. To conclude this thesis, thermodynamical aspects of these gravitational theories will be studied. In this way, we will be able to determine the mass and the charges of these new solutions and we will examine phase transition phenomena in the presence of a conformally scalar field.
2002 •
Un nouveau modèle d'explication des sursauts gamma vient d'être p roposé. Ceux-ci seraient émis par des trous noirs dotés d'un ch a mp é lect ro magn é ti que et par l'annihilation de matière et d'antimatière. Ce modèle, le premier à décrire comp l è tement le phénomène, expliqu e tous les sursauts observés, les plus courts comme les plus longs.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Large calorimetric devices for double beta decay and dark matter1994 •
International Journal of Chemical Studies
Domestication and evolution of maizeRevista Interamericana de Bibliotecología
Historia de las bibliotecas. De Alejandría a las bibliotecas virtuales2019 •
2024 •
Bütün Yönleriyle Zemahşerî
ZEMAHŞERÎ’NİN EL-MUFASSAL Fİ SAN‘ATİ’L-İ‘RÂB’ININ KIRÂAT İCAZETLERİ2023 •
Acta Parasitologica
Cryptosporidium parvum-Infected Neonatal Mice Show Gut Microbiota Remodelling Using High-Throughput Sequencing Analysis: Preliminary Results2019 •
Biomedical statistics and informatics
Noise Pollution and Control in Mechanical Processing Wood Industries2017 •
BMC anesthesiology
Perioperative lung protective ventilation in obese patients2015 •
2022 •
SISP Conference
Weakening of Parliamentary Representation. A Conceptual Framework for Assessing the Vertical Disconnect2024 •
Hitos de ciencias económico administrativas
Formación De Una Herramienta Confiable Para Evaluar El Comportamiento De Ciudadanía y La Cultura Organizacional en México2018 •
American Journal of Respiratory and Critical Care Medicine
Injurious Effects of Hypocapnic Alkalosis in the Isolated Lung2000 •
Journal of Craniovertebral Junction and Spine
Neglected hangman fracture2015 •
Documents d'Anàlisi Geogràfica
Izquierdo, Antonio y Cornelius, Wayne A. (eds.) (2012). Políticas de control migratorio: Estudio comparado de España y EE.UU2014 •
Erdélyi Társadalom
With the European council at the Moldovan “Csángó” people2007 •