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  1. No Access

    Article

    The hypergeneralized Heun equation in quantum field theory in curved space-times

    We show for the first time the role played by the hypergeneralized Heun equation (HHE) in the context of quantum field theory in curved space-times. More precisely, we find suitable transformations relating th...

    Davide Batic, Manuel Sandoval in Central European Journal of Physics (2010)

  2. No Access

    Article

    Velocity and velocity bounds in static spherically symmetric metrics

    We find simple expressions for velocity of massless particles with dependence on the distance, r, in Schwarzschild coordinates. For massive particles these expressions give an upper bound for the velocity. Our re...

    Ivan Arraut, Davide Batic, Marek Nowakowski in Central European Journal of Physics (2011)

  3. No Access

    Article

    Electrovac universes with a cosmological constant

    We present the extension of the Einstein-Maxwell system called electrovac universes by introducing a cosmological constant Λ. In the absence of the Λ term, the crucial equation in solving the Einstein-Maxwell ...

    Nelson C. Posada-Aguirre, Davide Batic in Central European Journal of Physics (2014)