2 papers
math.DG2026
Parabolic quasi-contact cone structures with an infinitesimal symmetry
Omid Makhmali, Katja Sagerschnig
We interpret the property of having an infinitesimal symmetry as a variational property in certain geometric structures. This is achieved by establishing a one-to-one correspondenc…
math.DG2024
Conformal structures with -symmetric twistor distribution
Pawel Nurowski, Katja Sagerschnig, Dennis The
For any 4D split-signature conformal structure, there is an induced twistor distribution on the 5D space of all self-dual totally null 2-planes, which is when the conform…