37 citations · 48 across the 5 of their papers we have counts for
6 papers · 1 filter
On pseudo-Hermitian Einstein spaces
Felipe Leitner
We describe and construct here pseudo-Hermitian structures without torsion (i.e. with transversal symmetry) whose Webster-Ricci curvature tensor is a constant multiple of the e…
Normal Conformal Killing Forms
Felipe Leitner
We introduce in this paper normal twistor equations for differential forms and study their solutions, the so-called normal conformal Killing forms. The twistor equations arise natu…
Conformal holonomy of bi-invariant metrics
Felipe Leitner
We discuss in this paper the conformal geometry of bi-invariant metrics on compact semisimple Lie groups. For this purpose we develop a conformal Cartan calculus adapted to this pr…
The twistor equation in Lorentzian spin geometry
Helga Baum, Felipe Leitner
In this paper we discuss the twistor equation in Lorentzian spin geometry. In particular, we explain the local conformal structure of Lorentzian manifolds, which admit twistor spin…
Imaginary Killing Spinors in Lorenztian Geometry
Felipe Leitner
We study the geometric structure of Lorentzian spin manifolds, which admit imaginary Killing spinors. The discussion is based on the cone construction and a normal form classificat…
Twistorial constructions of spacelike surfaces in Lorentzian 4-manifolds
Felipe Leitner
We investigate the twistor space and the Grassmannian fibre bundle of a Lorentzian 4-space with natural almost optical structures and its induced CR-structures. The twistor spaces…