Parametric localized isoperimetric conjecture for domains with corners

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Let Ω⊂Rn\Omega\subset\mathbb{R}^n be a connected domain whose piecewise smooth boundary has θ\theta-corners, with θ∈(0,π)\theta\in(0,\pi), and let 0≤k<n0\leq k<n. Let XpX^p be a pp-dimensional parameter space. There should exist constants c(Ω)>0c(\Omega)>0 and δ(Ω,L,p)>0\delta(\Omega,L,p)>0 such that, for every continuous δ(Ω,L,p)\delta(\Omega,L,p)-localized contractible family F:Xp→Zk(Ω,∂Ω;Z2)F:X^p\rightarrow\mathcal{Z}_k(\Omega,\partial\Omega;\mathbb{Z}_2) satisfying M⁡(F(x))≤L\operatorname{\textbf{M}}(F(x))\leq L, there is a map H:X→Ik+1(Ω;Z2)H:X\rightarrow I_{k+1}(\Omega;\mathbb{Z}_2) with

∂H(x)−F(x)⊂∂Ω\partial H(x)-F(x)\subset\partial\Omega

and

M⁡(H(x))≤c(Ω)(pn−k−1n+M⁡(F(x))p−1n).\operatorname{\textbf{M}}(H(x))\leq c(\Omega)\left(p^{\frac{n-k-1}{n}}+\operatorname{\textbf{M}}(F(x))p^{-\frac{1}{n}}\right).

This is the technical form used in the paper's low-dimensional Weyl-law argument; it refines the preceding conjecture by incorporating localization, parameter dimension, and boundary regularity.

References

Primary source

Larry Guth and Yevgeny Liokumovich, “Parametric inequalities and Weyl law for the volume spectrum”, arXiv:2202.11805 (2025).

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