4 papers
Multidimensional cost geometry
Jonathan Washburn, Milan ZlatanoviÄ, Philip Beltracchi
In this paper, we study the geometric structure induced by the canonical reciprocal cost function and its natural -dimensional extension. In logarithmic coordinates, the potenti…
Slowly rotating covariant anisotropic objects
Philip Beltracchi, Camilo Posada
The equilibrium configurations of slowly rotating anisotropic self-gravitating fluids are computed using the extended Hartle structure equations, including anisotropic effects, der…
Simple Bianchi cosmologies with anisotropic Segre [1(11,1)] dark energy
Philip Beltracchi
In this paper, we use a sample anisotropic but spatially homogeneous metric to look at the properties of Segre type [1(11,1)] universes, that behave like vacuum energy along a spat…
Slowly rotating anisotropic relativistic stars
Philip Beltracchi, Camilo Posada
The present paper is devoted to a study of the equilibrium configurations of slowly rotating anisotropic stars in the framework of general relativity. For that purpose, we provide…