1 citations · 2 across the 4 of their papers we have counts for
Showing 2026Show all
2 papers · 1 filter
gr-qc2026
On the topology of the space of vacuum initial data sets
Romain Gicquaud, Jonathan Glöckle
We show that the space of vacuum initial data sets on a closed manifold often has many non-trivial homotopy groups. The starting point is a result of the second named author, which…
math.DG2026
On pp-waves with lightlike parallel spinors
Bernd Ammann, Jonathan Glöckle, Klaus Kroencke
We parametrize pp-wave spacetimes with compact codimension 2 hypersurfaces. In the vacuum case, we show that these spacetimes are locally in one-to-one correspondence with smooth c…