196 citations · 1.2k across the 55 of their papers we have counts for
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A Bakry-Émery Almost Splitting Result With Applications to the Topology of Black Holes
Gregory J. Galloway, Marcus A. Khuri, Eric Woolgar
The almost splitting theorem of Cheeger-Colding is established in the setting of almost nonnegative generalized -Bakry-Émery Ricci curvature, in which is positive and the as…
Photon surfaces with equipotential time-slices
Carla Cederbaum, Gregory J. Galloway
Photon surfaces are timelike, totally umbilic hypersurfaces of Lorentzian spacetimes. In the first part of this paper, we locally characterize all possible photon surfaces in a cla…
Some scalar curvature warped product splitting theorems
Gregory J. Galloway, Hyun Chul Jang
We present several rigidity results for Riemannian manifolds with scalar curvature (or ), and having compact boundary satisfying a related mea…
Some Remarks on the -(in)extendibility of Spacetimes
Gregory J. Galloway, Eric Ling
The existence, established over the past number of years and supporting earlier work of Ori [14], of physically relevant black hole spacetimes that admit metric extensions be…
Uniqueness of photon spheres in electro-vacuum spacetimes
Carla Cederbaum, Gregory J. Galloway
In a recent paper, the authors established the uniqueness of photon spheres in static vacuum asymptotically flat spacetimes by adapting Bunting and Masood-ul-Alam's proof of static…
Uniqueness of photon spheres via positive mass rigidity
Carla Cederbaum, Gregory J. Galloway
In a recent paper the first author established the uniqueness of photon spheres, suitably defined, in static vacuum asymptotically flat spacetimes by adapting Israel's proof of sta…