40 citations · 65 across the 5 of their papers we have counts for
5 papers · 1 filter
Comment: Exact vacuum solution with Hopf structure in general relativity
Malcolm A. H. MacCallum
Harada's recently announced Kerr-Schild solution of Einstein's equations in general relativity [Phys. Rev. D {\bf 112}, 024020 92025)] is identified as isometric with one of the we…
Totally symmetrized spinors and null rotation invariance
Malcolm A. H. MacCallum
In the existing implementations of the Cartan-Karlhede procedure for characterization and classification of spacetimes, a prominent rôle is played by multi-index two-component spin…
Cartan Invariants and Event Horizon Detection, Extended Version
D. D. McNutt, M. A. H. MacCallum, D. Gregoris +4
We show that it is possible to locate the event horizons of a black hole (in arbitrary dimensions) as the zeros of certain Cartan invariants. This approach accounts for the recent…
General Relativity and Gravitation: A Centennial Perspective
Abhay Ashtekar, Beverly K. Berger, James Isenberg +1
To commemorate the 100th anniversary of general relativity, the International Society on General Relativity and Gravitation (ISGRG) commissioned a Centennial Volume, edited by the…
Hypersurface-orthogonal generators of an orthogonally transitive transitive , topological identifications, and axially and cylindrically symmetric spacetimes
M. A. H. MacCallum
A criterion given by Castejon-Amenedo and MacCallum (1990) for the existence of (locally) hypersurface-orthogonal generators of an orthogonally-transitive two-parameter Abelian gro…