42 citations · 347 across the 35 of their papers we have counts for
Showing 2020Show all
2 papers · 1 filter
math.DG2020★ 1 cited
Optical geometries
Anna Fino, Thomas Leistner, Arman Taghavi-Chabert
We study the notion of optical geometry, defined to be a Lorentzian manifold equipped with a null line distribution, from the perspective of intrinsic torsion. This is an instance…
math.DG2020★ 1 cited
Semi-Riemannian cones
Thomas Leistner
Due to a result by Gallot a Riemannian cone over a complete Riemannian manifold is either flat or has an irreducible holonomy representation. This is false in general for indefinit…