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Plateau borders in soap films and Gauss' capillarity theory

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arxiv 2310.20169 v1 pith:TDC4TS5Z submitted 2023-10-31 math.AP math-phmath.DGmath.MP

classification math.APmath-phmath.DGmath.MP
keywords filmsplateausoaptheoryborderscapillaritygaussenergy
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We provide, in the setting of Gauss' capillarity theory, a rigorous derivation of the equilibrium law for the three dimensional structures known as Plateau borders which arise in "wet" soap films and foams. A key step in our analysis is a complete measure-theoretic overhaul of the homotopic spanning condition introduced by Harrison and Pugh in the study of Plateau's laws for two-dimensional area minimizing surfaces ("dry" soap films). This new point of view allows us to obtain effective compactness theorems and energy representation formulae for the homotopic spanning relaxation of Gauss' capillarity theory which, in turn, lead to prove sharp regularity properties of energy minimizers. The equilibrium law for Plateau borders in wet foams is also addressed as a (simpler) variant of the theory for wet soap films.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Phase field approximation for Plateau's problem: a curve geodesic distance penalty approach

    math.OC 2025-06 conditional novelty 6.0 of 10

    A phase field model with a geodesic distance penalty between curves Gamma-converges to Plateau's problem for a single curve on a cylinder, and gives numerical approximations in wider cases.

  2. Multi-Bubble Isoperimetric Problems

    math.DG 2025-10 unverdicted

    A survey of recent results: the multi-bubble isoperimetric conjecture is proved in Gaussian space for all k≤n and for up to five bubbles on Rⁿ and Sⁿ, with the remaining cases open.

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