Published April 2025 | Version Published
Journal Article Open

Minimizers for an Aggregation Model with Attractive–Repulsive Interaction

  • 1. ROR icon Ludwig-Maximilians-Universität München
  • 2. Munich Center for Quantum Science and Technology
  • 3. ROR icon California Institute of Technology
  • 4. ROR icon Vanderbilt University

Abstract

We solve explicitly a certain minimization problem for probability measures involving an interaction energy that is repulsive at short distances and attractive at large distances. We complement earlier works by showing that in an optimal part of the remaining parameter regime all minimizers are uniform distributions on a surface of a sphere, thus showing concentration on a lower dimensional set. Our method of proof uses convexity estimates on hypergeometric functions.

Copyright and License

© The Author(s) (2025). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Acknowledgement

The authors are grateful to D. Bilyk, J. A. Carrillo, D. Chafaï, C. Davies, T. Lim, J. Mateu, R. McCann, E. B. Saff, J. Verdera, M. Vu, and R. Womersley for several discussions, correspondences, and help with references during the process of working on this problem.

Funding

R.L.F. is partially supported through US National Science Foundation grant DMS-1954995, as well as through the Deutsche Forschungsgemeinschaft Excellence Strategy EXC-2111-390814868 and TRR 352 (Project-ID 470903074). R.W.M. is supported by US National Science Foundation Postdoctoral Research Fellowship Grant 2202877.

Open Access funding enabled and organized by Projekt DEAL.

Files

s00205-025-02084-1.pdf

Files (439.7 kB)

Name Size Download all
md5:4346d5751fd453c4b4b147d640906894
439.7 kB Preview Download

Additional details

Related works

Describes
Journal Article: https://rdcu.be/ew311 (ReadCube)
Is new version of
Discussion Paper: arXiv:2307.13769v3 (arXiv)

Funding

National Science Foundation
DMS-1954995
Deutsche Forschungsgemeinschaft
EXC-2111-390814868
Deutsche Forschungsgemeinschaft
TRR 352 (Project-ID 470903074)
National Science Foundation
DMS-2202877

Dates

Accepted
2025-01-15
Available
2025-02-11
Published online

Caltech Custom Metadata

Caltech groups
Division of Physics, Mathematics and Astronomy (PMA)
Publication Status
Published