23.10.2025, 16:15 Uhr
– Building 9, Room 1.22, Golm
Forschungsseminar Differentialgeometrie
Spinorial proofs of the positive mass theorem
Rudolf Zeidler
Martin Weilandt
Inspired by work of Borzellino and Brunsden, we generalize the notion of a submanifold identifying a natural and sufficiently general condition which guarantees that a subset of an (effective) orbifold carries itself a canonical induced orbifold structure. We illustrate the strength of this approach generalizing typical constructions of submanifolds to the orbifold setting using embeddings, proper group actions and the idea of transversality.