14 citations · 16 across the 4 of their papers we have counts for
4 papers
Vector Field Dynamics: Field Equations and Energy Tensor
Roberto Dale, Alicia Herrero, Juan Antonio Morales-Lladosa
Relativistic field theory for a vector field on a curved space-time is considered assuming that the Lagrangian field density is quadratic and contains field derivatives of first or…
Essential Fierz identities for a fermionic field
Roberto Dale, Alicia Herrero, Juan Antonio Morales-Lladosa
For a single fermionic field, an interpretation of the Fierz identities (which establish relations between the bilinear field observables) is given. They appear closely related to…
Painlevé-Gullstrand synchronizations in spherical symmetry
Alicia Herrero, Juan Antonio Morales-Lladosa
A Painlevé-Gullstrand synchronization is a slicing of the space-time by a family of flat spacelike 3-surfaces. For spherically symmetric space-times, we show that a Painlevé-Gullst…
Effect of a non null pressure on the evolution of perturbations in the matter dominated epoch
A. Herrero, M. Portilla
We analyze the effect of pressure on the evolution of perturbations of an Einstein-de Sitter Universe in the matter dominated epoch assuming an ideal gas equation of state. For the…