Dirichlet infinite-linking convergence conjecture

Let MM be the material manifold and let M0=[0,τ]×M\mathbb{M}_0=[0,\tau]\times M be the spacetime manifold with Dirichlet boundary conditions. For each a0a\geq 0, let Hdir,aH_{\mathrm{dir},a} and Sdir,aS_{\mathrm{dir},a} denote the geometric and functional minimisation constants on M0\mathbb{M}_0, and let hdirDh_{\mathrm{dir}}^D and sdirDs_{\mathrm{dir}}^D denote the corresponding material constants on MM. Let Fa:M0RF_a:\mathbb{M}_0\to\mathbb{R} minimise Sdir,aS_{\mathrm{dir},a}, let f:MRf:M\to\mathbb{R} minimise sdirDs_{\mathrm{dir}}^D, let Aa\mathbb{A}_a minimise Hdir,aH_{\mathrm{dir},a}, and let AA minimise hdirDh_{\mathrm{dir}}^D.

Dirichlet infinite-linking convergence conjecture. The constants and minimisers satisfy

limaSdir,a=sdirDandlimaHdir,a=hdirD.\lim_{a\to\infty} S_{\mathrm{dir},a}=s_{\mathrm{dir}}^D\quad\text{and}\quad\lim_{a\to\infty} H_{\mathrm{dir},a}=h_{\mathrm{dir}}^D.

Moreover,

limaFa(t,x)=f(x)\lim_{a\to\infty}F_a(t,x)=f(x)

for all t[0,τ]t\in[0,\tau] and xMx\in M, and

limaAa=[0,τ]×A.\lim_{a\to\infty}\mathbb{A}_a=[0,\tau]\times A.

This is the Dirichlet-boundary analogue of the convergence conjecture for the mixed boundary condition setting: infinitely tight linking should recover the corresponding material minimisers.

Sources & referencesView supporting material

Primary source

Jason Atnip, Gary Froyland and Péter Koltai, “An inflated dynamic Laplacian to track the emergence and disappearance of semi-material coherent sets”, arXiv:2403.10360 (2026).

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