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Publication 14-CNA-013

Existence of Minimizers of Nonlocal Interaction Energies

Robert Simione
Department of Mathematical Sciences
Carnegie Mellon University
Pittsburgh, PA 15213
rsimione@andrew.cmu.edu

Dejan Slepčev
Department of Mathematical Sciences
Carnegie Mellon University
Pittsburgh, PA 15213
slepcev@andrew.cmu.edu

Ihsan Topaloglu
Department of Mathematics and Statistics
McGill University
Montreal, QC Canada
itopaloglu@math.mcgill.ca

Abstract: We investigate nonlocal-interaction energies on the space of probability measures. We establish sharp conditions for the existence of minimizers for a broad class of nonlocal-interaction energies. The condition is closely related to the notion of $H$-stability of pairwise interaction potentials in statistical mechanics. Our approach uses the direct method of calculus of variations.

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