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Higher regularity for minimizers of very degenerate convex integrals
Analysis of PDEs · Submitted 29 Dec 2023
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We prove that $\mathcal{K}(x,Du)$ is continuous in $\Omega$, for any continuous function $\mathcal{K}: \Omega \times \mathbb{R}^{nN} \rightarrow \mathbb{R}$ vanishing on $\bigl\{ (x,\xi ) \in \Omega \times \mathbb{R}^{nN} : |\xi|_{\gamma(x)} \le 1 \bigr\}$.
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The abstract, sentence by sentence
In this paper, we consider minimizers of integral functionals of the type \begin{equation*} \mathcal{F}(u):= \int_\Omega \dfrac{1}{p} \bigl( |Du(x)|_{\gamma(x)}-1\bigr)_+^p \ \mathrm{d}x, \end{equation*} for $p >1$, where $u : \Omega \subset \mathbb{R}^n \to \mathbb{R}^N$, with $N \ge 1$, is a possibly vector-valued function. Here, $| \cdot |_\gamma$ is the associated norm of a bounded, symmetric and coercive bilinear form on $\mathbb{R}^{nN}$. We prove that $\mathcal{K}(x,Du)$ is continuous in $\Omega$, for any continuous function $\mathcal{K}: \Omega \times \mathbb{R}^{nN} \rightarrow \mathbb{R}$ vanishing on $\bigl\{ (x,\xi ) \in \Omega \times \mathbb{R}^{nN} : |\xi|_{\gamma(x)} \le 1 \bigr\}$.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | In this paper, we consider minimizers of integral functionals of the type \begin{equation*} \mathcal{F}(u):= \int_\Omega \dfrac{1}{p} \bigl( |Du(x)|_{\gamma(x)}-1\bigr)_+^p \ \mathrm{d}x, \end{equation*} for $p >1$, where $u : \Omega \subset \mathbb{R}^n \to \mathbb{R}^N$, with $N \ge 1$, is a possibly vector-valued function. | contribution 0.57 | 0.53 | 0.03 | asserted 0.78 |
| s1 | Here, $| \cdot |_\gamma$ is the associated norm of a bounded, symmetric and coercive bilinear form on $\mathbb{R}^{nN}$. | background 0.99 | 0.12 | 0.02 | asserted 0.99 |
| s2 | We prove that $\mathcal{K}(x,Du)$ is continuous in $\Omega$, for any continuous function $\mathcal{K}: \Omega \times \mathbb{R}^{nN} \rightarrow \mathbb{R}$ vanishing on $\bigl\{ (x,\xi ) \in \Omega \times \mathbb{R}^{nN} : |\xi|_{\gamma(x)} \le 1 \bigr\}$. | result 0.99 | 0.95 | 0.87 | asserted 1.00 |
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Original abstract
In this paper, we consider minimizers of integral functionals of the type \begin{equation*} \mathcal{F}(u):= \int_\Omega \dfrac{1}{p} \bigl( |Du(x)|_{\gamma(x)}-1\bigr)_+^p \ \mathrm{d}x, \end{equation*} for $p >1$, where $u : \Omega \subset \mathbb{R}^n \to \mathbb{R}^N$, with $N \ge 1$, is a possibly vector-valued function. Here, $| \cdot |_\gamma$ is the associated norm of a bounded, symmetric and coercive bilinear form on $\mathbb{R}^{nN}$. We prove that $\mathcal{K}(x,Du)$ is continuous in $\Omega$, for any continuous function $\mathcal{K}: \Omega \times \mathbb{R}^{nN} \rightarrow \mathbb{R}$ vanishing on $\bigl\{ (x,\xi ) \in \Omega \times \mathbb{R}^{nN} : |\xi|_{\gamma(x)} \le 1 \bigr\}$.
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