283 citations · 3k across the 114 of their papers we have counts for
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Bi-conformal vector fields and their applications
Alfonso García-Parrado, José M. M. Senovilla
We introduce the concept of bi-conformal transformation, as a generalization of conformal ones, by allowing two orthogonal parts of a manifold with metric $\G$ to be scaled by diff…
Causal symmetries
A. García-Parrado, J. M. M. Senovilla
We define a new type of transformation for Lorentzian manifolds characterized by mapping every causal future-directed vector onto a causal future-directed vector. The set of all su…
Superenergy tensors and their applications
J. M. M. Senovilla
In Lorentzian manifolds of any dimension the concept of causal tensors is introduced. Causal tensors have positivity properties analogous to the so-called ``dominant energy conditi…
Causal Relations and their applications
Alfonso García-Parrado, José M. M. Senovilla
In this work we define and study the relations between Lorentzian Manifolds given by the diffeomorphisms which map causal future directed vectors onto causal future directed vector…