2 citations · 2 across the 3 of their papers we have counts for
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math-ph2023
Multiplane gravitational lenses with an abundance of images
Charles R. Keeton, Erik Lundberg, Sean Perry
We consider gravitational lensing of a background source by a finite system of point-masses. The problem of determining the maximum possible number of lensed images has been comple…
math-ph2021★ 2 cited
On the Number of Equilibria Balancing Newtonian Point Masses with a Central Force
Nickolas Arustamyan, Christopher Cox, Erik Lundberg +2
We consider the critical points (equilibria) of a planar potential generated by Newtonian point masses augmented with a quadratic term (such as arises from a centrifugal effect…
math-ph2019
An Upper Bound for the Number of Gravitationally Lensed Images in a Multiplane Point-mass Ensemble
Sean Perry
Herein we prove an upper bound on the number of gravitationally lensed images in a generic multiplane point-mass ensemble with K planes and g_i masses in the ith plane. With E_K an…