40 citations · 314 across the 33 of their papers we have counts for
6 papers · 1 filter
Scalar Curvature Invariants in Classical and Quantum Gravity
B. Shakerin, D. D. McNutt, B. Mattingly +8
A short review of scalar curvature invariants in gravity theories is presented. We introduce how these invariants are constructed and discuss the minimal number of invariants requi…
Geometric Horizons: A Frame Approach
A. A. Coley, D. D. McNutt
In the numerical investigation of the physical merger of two black holes, it is crucial to locate a black hole locally. This is usually done utilizing an apparent horizon. An alter…
Teleparallel geometries not characterized by their scalar polynomial torsion invariants
D. D. McNutt, A. A. Coley, R. J. van den Hoogen
A teleparallel geometry is an n-dimensional manifold equipped with a frame basis and an independent spin connection. For such a geometry, the curvature tensor vanishes and the tors…
Geometric surfaces: An invariant characterization of spherically symmetric black hole horizons and wormhole throats
D. D. McNutt, W. Julius, M. Gorban +3
We consider a spherically symmetric line element which admits either a black hole geometry or a wormhole geometry and show that in both cases the apparent horizon or the wormhole t…
Comment on "Szekeres universes with homogeneous scalar fields"
Ismael Delgado Gaspar, Roberto A. Sussman, David D. McNutt +1
Two recently published papers (J.D. Barrow and A. Paliathanasis, Eur. Phys. J. C. (2018, 2019)) claim to have found exact solutions of Einstein's field equations belonging to the c…
An invariant characterization of the quasi-spherical Szekeres dust models
A. A. Coley, N. Layden, D. D. McNutt
The quasi-spherical Szekeres dust solutions are a generalization of the spherically symmetric Lemaitre-Tolman-Bondi dust models where the spherical shells of constant mass are non-…