#### 70 Citations

Cosmic acceleration, inflation, dark matter, and dark 'energy' in one neat package

- Physics
- 2006

In creating his gravitational field equations Einstein unjustifiedly assumed that inertial mass, even in its equivalent form as energy, is a source of gravity. Denying this assumption allows… Expand

Regularidade dos minimizantes no cálculo das variações e controlo óptimo

- Mathematics
- 2002

In this Ph.D. thesis a new approach to Lipschitzian regularity of the minimizing trajectories to problems of the calculus of variations and optimal control is developed. The author also generalizes… Expand

Killing vector fields and a homogeneous isotropic universe

- Physics
- 2016

Some basic theorems on Killing vector fields are reviewed. In particular, the topic of a constant-curvature space is examined. A detailed proof is given for a theorem describing the most general form… Expand

Universal principles for Kazdan-Warner and Pohozaev-Schoen type identities

- Mathematics, Physics
- 2010

The classical Pohozaev identity constrains potential solutions of certain semilinear PDE boundary value problems. The Kazdan-Warner identity is a similar necessary condition important for the… Expand

Emmy Noether: her heritage

- Mathematics
- 2008

Emmy Noether is my role model for the following reasons. She is one of the most important mathematician and physicists of the 20 century; She fought to be a scientist in times where women were not… Expand

Mass-Energy-Momentum in General Relativity . Only there because of Spacetime ?

- 2008

I describe how relativistic field theory generalises the defining property of material systems to possess mass to the requirement of them having a mass-energy-momentum density tensor Tμν (energy… Expand

On higher order gravities, their analogy to GR, and dimensional dependent version of Duff’s trace anomaly relation

- Physics
- 2006

An almost brief, though lengthy, review introduction about the long history of higher order gravities and their applications, as employed in the literature, is provided. We review the analogous… Expand

Universal field equations for metric-affine theories of gravity

- Physics
- 1998

We show that almost all metric-affine theories of gravity yield Einstein field equations with a non-null cosmological constant . Under certain circumstances and for any dimension, it is also possible… Expand

Biconservative Submanifolds in $$\mathbb {S}^n\times \mathbb {R}$$Sn×R and $$\mathbb {H}^n\times \mathbb {R}$$Hn×R

- Mathematics
- 2019

In this paper we study biconservative submanifolds in $$\mathbb {S}^n\times \mathbb {R}$$Sn×R and $$\mathbb {H}^n\times \mathbb {R}$$Hn×R with parallel mean curvature vector field and codimesion 2.… Expand

A phenomenological exploration within Theoretical Cosmology: from the Early to the Late Universe.

- Philosophy
- 2018

En esta tesis se han explorado posibles extensiones del Modelo Estandar de la Cosmolog??a. Hemosobtenido las predicciones teoricas de los modelos considerados y sus principales caracter??sticas.… Expand