3 papers
math.DG2026
A note on tractor bundles and codimension two spacelike immersions
Rodrigo Morón
We study conformal tractor bundles from an extrinsic viewpoint, relating them to codimension two spacelike immersions into Lorentzian manifolds. We show that, at least locally, eve…
math.DG2025
Cartan geometries with model the future lightlike cone of Lorentz-Minkowski spacetime
Rodrigo Morón, Francisco J. Palomo
This paper develops the theory of Cartan geometries modeled on the future lightlike cone of Lorentz Minkowski spacetime, which we refer to as lightlike Cartan geometries. We show t…
math.DG2022
Normal tractor conformal bundles and codimension two spacelike submanifolds in Lorentzian manifolds
Rodrigo Morón, Francisco J. Palomo
For every codimension two spacelike submanifold of a Lorentz manifold and each choice of a normal lightlike vector field, we introduce a canonical way to construct a tractor confor…