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math.DG2025
Conformal hypersurface invariants and Bach-type Boundary Problems
Samuel Blitz, A. Rod Gover
Using variational considerations, we establish that there exists a new symmetric trace-free tensor conformal invariant of hypersurfaces embeddings in even dimensional conformal man…
math.DG2025
Non-existence of higher-order conformal fundamental forms in odd dimensions
Samuel Blitz
Conformal fundamental forms populate a minimal generating set for low differential order invariants of conformal hypersurface embeddings. In this work we complete the characterizat…
gr-qc2025
Asymptotia of Kerr-de Sitter Black Holes
Samuel Blitz, Jarosław Kopiński
Exterior geometries of physical black holes are believed to asymptotically approach the Kerr--de Sitter spacetime at late times. A characteristic feature of that vacuum Einstein so…