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Phase Field Approach to Optimal Packing Problems and Related Cheeger Clusters

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Abstract

This paper stems from the idea of adopting a new approach to solve some classical optimal packing problems for balls. In fact, we attack this kind of problems (which are of discrete nature) by means of shape optimization techniques, applied to suitable \(\Gamma \)-converging sequences of energies associated to Cheeger type problems. More precisely, in a first step we prove that different optimal packing problems are limits of sequences of optimal clusters associated to the minimization of energies involving suitable (generalized) Cheeger constants. In a second step, we propose an efficient phase field approach based on a multiphase \(\Gamma \)-convergence result of Modica–Mortola type, in order to compute those generalized Cheeger constants, their optimal clusters and, as a consequence of the asymptotic result, optimal packings. Numerical experiments are carried over in two and three space dimensions. Our continuous shape optimization approach to solve discrete packing problems circumvents the NP-hard character of these ones, and efficiently leads to configurations close to the global minima.

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Authors and Affiliations

  1. CMAP UMR 7641 École Polytechnique, CNRS, Route de Saclay, 91128, Palaiseau Cedex, France

    Beniamin Bogosel

  2. Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, LAMA, 73000, Chambéry, France

    Dorin Bucur

  3. Dipartimento di Matematica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133, Milan, Italy

    Ilaria Fragalà

Authors
  1. Beniamin Bogosel
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  2. Dorin Bucur
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  3. Ilaria Fragalà
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Corresponding author

Correspondence to Dorin Bucur.

Additional information

This work was supported by the ANR-15-CE40-0006 COMEDIC project and GNAMPA (INDAM).

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Bogosel, B., Bucur, D. & Fragalà, I. Phase Field Approach to Optimal Packing Problems and Related Cheeger Clusters. Appl Math Optim 81, 63–87 (2020). https://doi.org/10.1007/s00245-018-9476-y

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  • DOI: https://doi.org/10.1007/s00245-018-9476-y

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