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math.DG2023
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.DG2023
Modified conformal extensions
Matthias Hammerl, Katja Sagerschnig, Josef Šilhan +1
We present a geometric construction and characterization of -dimensional split-signature conformal structures endowed with a twistor spinor with integrable kernel. The construc…