Now showing items 1-20 of 143

    • 10 Clases de Herramientas Computacionales Numéricas 

      Núñez, Luis; Hernández G., Héctor (SABER ULA, 2005-10-04)
      10 Clases de Herramientas Computacionales Numéricas (Núñez, Luis; Hernández, Hector) Nota: Para visualizar los documentos a texto completo necesita tener instalado el programa Adobe Acrobat Reader ...
    • A family of coordinate systems for reissner-nordstron geometry. 

      Patiño, Alberto; Rago, Héctor (SABER ULA, 2006-08-03)
    • A note about localized photons on the brane 

      Khoudeir, Adel (SABER ULA, 2005-01-06)
      A note about localized photons on the brane (Khoudeir, Adel) Abstract A first order formulation for the Maxwell field in five dimensions is dimentionally reduced using the Randall-Sundrum mechanism. We will see ...
    • La atractiva gravedad. 

      Rago, Héctor (SABER ULA, 2006-08-04)
    • Biomedical aplications in EELA. 

      Pérez Griffo, Javier; Isea, Raúl; Núñez, Luis; Mora, Henry Ricardo; Fernández, Manuel; Cardenas, Miguel; Hernández, Vicente; Mayo, Rafael; Blanquer, Ignacio (SABER ULA, 2007-03-09)
      Biomedical aplications in EELA. (Perez Griffo, Javier; Isea, Raul; Nuñez, Luis; Mora, Henry Ricardo; Fernández, Manuel; Cardenas, Miguel; Hernández, Vicente; Mayo, Rafael and Blanquer, Ignacio) Abstract The current ...
    • Broken symmetries in the early universe 

      Melfo, Alejandra; Senjanovic, Goran (SABER ULA, 2005-01-06)
      Broken symmetries in the early universe (Melfo, Alejandra; Senjanovic, Goran) Abstract We give a brief review of recent results on symmetry nonrestoration at high temperature. The year is 1010 B.C. All the ...
    • Bubble collisions and defect formation in a damping environment 

      Melfo, Alejandra; Ferrera, Antonio (SABER ULA, 2005-01-06)
      Bubble collisions and defect formation in a damping environment (Melfo, Alejandra; Ferrera, Antonio) Abstract Within the context of a first-order phase transition in the early Universe, we study the collision process ...
    • Close to the edge: hierarchy in a double braneworld 

      Guerrero, Rommel; Pantoja, Nelson; Melfo, Alejandra; Rodriguez, Omar (SABER ULA, 2007-03-19)
      Close to the edge: hierarchy in a double braneworld. (Guerrero, Rommel; Melfo, Alejandra; Pantoja, Nelson and Rodriguez, R. Omar) Abstract We show that the hierarchy between the Planck and the weak scales can follow ...
    • Clusters de PCs. 

      Núñez, Luis; Díaz, Gilberto; Hoeger, Herbert (SABER ULA, 2008-06-09)
      Clusters de PCs. (Núñez, Luis; Díaz, Gilberto; Hoeger, Herbert.) Resumen Los Clusters de PCs se hicieron populares con el proyecto Beowulf. La idea consiste en armar un máquina, con gran poder de computo, interconectando ...
    • Comment on Ricci Collineations of static spherically symmetric spacetimes 

      Núñez, Luis; Percoco, Umberto; Contreras, Gerardo; Bertolotti, Ricardo; Carot, Jaume (SABER ULA, 2006-01-26)
      Comment on Ricci Collineations of static spherically symmetric spacetimes (Núñez, Luis; Contreras, Gerardo; Percoco, Umberto; Bertolotti, Ricardo; Carot, J.) Abstract We present a counter example to a theorem given ...
    • Conformal symmetries in null Einstein-Maxwell fields 

      Carot, Jaume; Hall, J. S. (SABER ULA, 2008-07-02)
      Conformal symmetries in null Einstein-Maxwell fields (Carot, Jaume; Hall, J. S.) Abstract It is shown that if a null Einstein-Maxwell spacetime admifs a proper conformal vector field it must either be a (generalized ...
    • Conformal symmetries in warped manifolds. 

      Apostolopoulos, Pantelis S.; Carot, Jaume (SABER ULA, 2008-07-02)
      Conformal symmetries in warped manifolds (P. S., Apostolopoulos; Carot, Jaume.) Abstract The existence of a Conformal Vector Field (CVF) is studied in the important class of warped manifolds of arbitrary dimension ...
    • Conformal symmetry inheritance in null fluid spacetimes 

      Carot, Jaume; Tupper, Brian O. J.; Hall, J. S.; Keane, A. J.; Coley, A. A. (SABER ULA, 2008-07-02)
      Conformal symmetry inheritance in null fluid spacetimes (Carot, Jaume; Keane, A. J.; Coley, A. A.; Hall, J. S.; Tupper, Brian O. J.) Abstract We define inheriting conformal Killing vectors for null fluid spacetimes ...
    • Conformally reducible 2 + 2 spacetimes 

      Carot, Jaume; Tupper, Brian O. J. (SABER ULA, 2008-07-02)
      Conformally reducible 2 + 2 spacetimes (Carot, Jaume; Tupper, Brian O. J.) Abstract Spacetimes which are conformal to 2 + 2 reducible spacetimes are considered. We classify them according to their conformal algebra, ...
    • Contribution to the commissioning of the ATLAS calorimeter electronics calibration 

      Cárdenas G., Antonio L. (SABER ULA, 2008-08-07)
      Contribution to the commissioning of the ATLAS calorimeter electronics calibration (Cárdenas G., Antonio L.)
    • Cosmos y cosmología 

      Rago, Héctor (SABER ULA, 2003-07-14)
      La traducción de este artículo fue publicada en el libro: Astrobiology: Origins from Big bang to Civilisation, Editado por Julián Chela-Flores, Guillermo A. Lemarchand y John Oró, Klwer Academis Press, 2000.
    • Covariant duality symmetric actions 

      Khoudeir, Adel; Pantoja, Nelson (SABER ULA, 2005-01-06)
      Covariant duality symmetric actions (Khoudeir, Adel; Pantoja, Nelson) Abstract A manifestly Lorentz and diffeomorphism invariant form for the abelian gauge field action with local duality symmetry of Schwarz and ...
    • Cracking of self-gravitating compact objects with local and non local equations of state. 

      Abreu, Henso; Hernández G., Héctor; Núñez, Luis (SABER ULA, 2006-12-28)
      Cracking of self-gravitating compact objects with local and non local equations of state. (Abreu, Henso; Hernández, Hector y Núñez, Luis) Abstract We discuss the effect that small fluctuations of density and local ...
    • Crucial test of relativity theory: open currents and magnetic model of light. 

      Spavieri, Gianfranco; Erazo, Jesús; Sánchez, Arturo; Ayazo, José; Rodriguez, M. (SABER ULA, 2007-04-13)
      Crucial test of relativity theory: open currents and magnetic model of light. Spavieri, Gianfranco; Erazo, J.; Sanchez, A.; Ayazo, José and Rodriguez, M. Abstract Fundamental tests of special theory of relativity (STR) ...
    • Curvature singularity of the distributional BTZ black hole geometry 

      Pantoja, Nelson; Rago, Héctor; Rodríguez, R.O. (SABER ULA, 2005-05-25)
      Curvature singularity of the distributional BTZ black hole geometry Pantoja, Nelson; Rago, Héctor; Rodríguez, R.O. Abstract For the non-rotating BTZ black hole, the distributional curvature ...