$Γ$-convergence of the $p$-Dirichlet energy for manifold-valued maps

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Hauptverfasser: Canevari, Giacomo, Le, Van Phu Cuong, Oliver-Bonafoux, Ramon, Orlandi, Giandomenico
Format: Preprint
Veröffentlicht: 2025
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author Canevari, Giacomo
Le, Van Phu Cuong
Oliver-Bonafoux, Ramon
Orlandi, Giandomenico
author_facet Canevari, Giacomo
Le, Van Phu Cuong
Oliver-Bonafoux, Ramon
Orlandi, Giandomenico
contents We prove a $Γ$-convergence result for the $p$-Dirichlet energy functional defined on maps from a smooth bounded domain $Ω\subseteq \mathbb{R}^{n+k}$ to $\mathscr{N}$, a $(k-2)$-connected and smooth closed Riemannian manifold with Abelian fundamental group, where $n$ and $k$ are integers, $n \geq 0$, $k \geq 2$. We focus on the regime $p \to~k^-$ under Dirichlet boundary conditions. The result provides a description of the asymptotic behavior of the $\textit{topological singular sets}$ for families of $\mathscr{N}$-valued Sobolev maps which satisfy suitable energy bounds. Such topological singular sets are $n$-dimensional flat chains with coefficients in $π_{k-1}(\mathscr{N})$ endowed with a suitable norm. As a consequence of our main result, it follows that the topological singular sets of energy minimizing $p$-harmonic maps converge to a $n$-dimensional flat chain $S$ with coefficients in $π_{k-1}(\mathscr{N})$ which has finite mass and solves the Plateau problem within the homology class associated to the boundary datum.
format Preprint
id arxiv_https___arxiv_org_abs_2505_21257
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $Γ$-convergence of the $p$-Dirichlet energy for manifold-valued maps
Canevari, Giacomo
Le, Van Phu Cuong
Oliver-Bonafoux, Ramon
Orlandi, Giandomenico
Analysis of PDEs
49Q15, 49Q20, 58E12, 58E20
We prove a $Γ$-convergence result for the $p$-Dirichlet energy functional defined on maps from a smooth bounded domain $Ω\subseteq \mathbb{R}^{n+k}$ to $\mathscr{N}$, a $(k-2)$-connected and smooth closed Riemannian manifold with Abelian fundamental group, where $n$ and $k$ are integers, $n \geq 0$, $k \geq 2$. We focus on the regime $p \to~k^-$ under Dirichlet boundary conditions. The result provides a description of the asymptotic behavior of the $\textit{topological singular sets}$ for families of $\mathscr{N}$-valued Sobolev maps which satisfy suitable energy bounds. Such topological singular sets are $n$-dimensional flat chains with coefficients in $π_{k-1}(\mathscr{N})$ endowed with a suitable norm. As a consequence of our main result, it follows that the topological singular sets of energy minimizing $p$-harmonic maps converge to a $n$-dimensional flat chain $S$ with coefficients in $π_{k-1}(\mathscr{N})$ which has finite mass and solves the Plateau problem within the homology class associated to the boundary datum.
title $Γ$-convergence of the $p$-Dirichlet energy for manifold-valued maps
topic Analysis of PDEs
49Q15, 49Q20, 58E12, 58E20
url https://arxiv.org/abs/2505.21257