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A characterization of ℓ1 double bubbles with general interface interaction

  • Manuel Friedrich , Wojciech Górny ORCID logo and Ulisse Stefanelli EMAIL logo
Published/Copyright: March 29, 2025

Abstract

We investigate the optimal arrangements of two planar sets of given volume which are minimizing the 1 double-bubble interaction functional. The latter features a competition between the minimization of the 1 perimeters of the two sets and the maximization of their 1 interface. We investigate the problem in its full generality for sets of finite perimeter, by considering the whole range of possible interaction intensities and all relative volumes of the two sets. The main result is the complete classification of minimizers.

MSC 2020: 49Q10

Communicated by Frank Duzaar


Award Identifier / Grant number: FR 4083/3-1

Award Identifier / Grant number: EXC 2044-390685587

Funding source: Austrian Science Fund

Award Identifier / Grant number: I4354

Award Identifier / Grant number: 10.55776/ESP88

Award Identifier / Grant number: I4354

Award Identifier / Grant number: F65

Award Identifier / Grant number: I5149

Award Identifier / Grant number: and P 32788

Funding statement: Manuel Friedrich acknowledges support of the DFG project FR 4083/3-1. This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC 2044-390685587, Mathematics Münster: Dynamics–Geometry–Structure. Wojciech Górny acknowledges support of the Austrian Science Fund (FWF), grants I4354 and 10.55776/ESP88. Ulisse Stefanelli acknowledges support of the FWF grants I4354, F65, I5149, and P 32788. For the purpose of open access, the authors have applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.

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Received: 2023-11-24
Accepted: 2025-03-03
Published Online: 2025-03-29
Published in Print: 2025-07-01

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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