431 citations · 3.3k across the 106 of their papers we have counts for
Showing 2005Show all
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cond-mat.other2005★ 3 cited
Arbitrary Force-Constant Changes in the Crystal Impurity Problem
Philip D. Mannheim
In a previous study of the dynamics of crystals with substitutional point defects we had obtained simple and exact expressions for the positions of the perturbed crystal modes and…
cond-mat.other2005★ 3 cited
Bounds on Localized Modes in the Crystal Impurity Problem
Harry J. Lipkin, Philip D. Mannheim
Using general properties of the crystal site representation normal mode matrix, we provide some very simple bounds on localized modes in simple, body-centered and face-centered cub…
astro-ph2005★ 431 cited
Alternatives to Dark Matter and Dark Energy
Philip D. Mannheim
We review the underpinnings of the standard Newton-Einstein theory of gravity, and identify where it could possibly go wrong. In particular, we discuss the logical independence fro…