8 citations · 32 across the 16 of their papers we have counts for
Showing 2019Show all
2 papers · 1 filter
math.DG2019
The conformal group of a compact simply connected Lorentzian manifold
Karin Melnick, Vincent Pecastaing
We prove that the conformal group of a closed, simply connected, real analytic Lorentzian manifold is compact. D'Ambra proved in 1988 that the isometry group of such a manifold is…
math.DG2019
C^1 Deformations of almost-Grassmannian structures with strongly essential symmetry
Andreas Čap, Karin Melnick
We construct a family of -almost Grassmannian structures of regularity , each admitting a one-parameter group of strongly essential automorphisms, and each not flat on…