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For $1<p<\infty$ we prove an $L^p$-version of the generalized trace-free Korn inequality for incompatible tensor fields $P$ in $ W^{1,\,p}_0(\operatorname{Curl}; \Omega,\mathbb{R}^{3\times3})$. More precisely, let…

Analysis of PDEs · Mathematics 2021-10-14 Peter Lewintan , Patrizio Neff

For $1<p<\infty$ we prove an $L^p$-version of the generalized Korn inequality for incompatible tensor fields $P$ in $ W^{1,\,p}_0(\operatorname{Curl}; \Omega,\mathbb{R}^{3\times3})$. More precisely, let $\Omega\subset\mathbb{R}^3$ be a…

Analysis of PDEs · Mathematics 2021-05-18 Peter Lewintan , Patrizio Neff

Let $\Omega \subset \mathbb{R}^3$ be an open and bounded set with Lipschitz boundary and outward unit normal $\nu$. For $1<p<\infty$ we establish an improved version of the generalized $L^p$-Korn inequality for incompatible tensor fields…

Analysis of PDEs · Mathematics 2021-07-06 Peter Lewintan , Stefan Müller , Patrizio Neff

We characterise all linear maps $\mathcal{A}\colon\mathbb{R}^{n\times n}\to\mathbb{R}^{n\times n}$ such that, for $1\leq p<n$, \begin{align*} \|P\|_{L^{p^{*}}(\mathbb{R}^{n})}\leq…

Analysis of PDEs · Mathematics 2023-06-30 Franz Gmeineder , Peter Lewintan , Patrizio Neff

We establish a family of coercive Korn-type inequalities for generalised incompatible fields in the superlinear growth regime under sharp criteria. This extends and unifies several previously known inequalities that are pivotal to the…

Analysis of PDEs · Mathematics 2023-12-08 Franz Gmeineder , Peter Lewintan , Patrizio Neff

We prove a Korn-type inequality for tensor fields without gradient structure, which generalizes Korn's first inequality.

Analysis of PDEs · Mathematics 2011-07-01 Patrizio Neff , Dirk Pauly , Karl-Josef Witsch

In the present paper we extend the $L^2$ Korn interpolation and second inequalities in thin domains, proven in [\ref{bib:Harutyunyan.4}], to the space $L^p$ for any $1<p<\infty.$ A thin domain in space is roughly speaking a shell with…

Analysis of PDEs · Mathematics 2020-04-14 Davit Harutyunyan

We show that the following generalized version of Korn's second inequality with nonconstant measurable matrix valued coefficients P ||DuP+(DuP)^T||_q+||u||_q >= c ||Du||_q for u in W_0^{1,q}({\Omega};R^3), 1<q<{\infty} is in general false,…

Analysis of PDEs · Mathematics 2013-03-07 Patrizio Neff , Waldemar Pompe

Korn's inequality plays an important role in linear elasticity theory. This inequality bounds the norm of the derivatives of the displacement vector by the norm of the linearized strain tensor. The kernel of the linearized strain tensor are…

General Relativity and Quantum Cosmology · Physics 2009-12-04 Sergio Dain

We prove a Korn-type inequality in H(Curl) for tensor fields.

Analysis of PDEs · Mathematics 2011-07-01 Patrizio Neff , Dirk Pauly , Karl-Josef Witsch

We present a concise point of view on the first and the second Korn's inequality for general exponent $p$ and for a class of domains that includes Lipschitz domains. Our argument is conceptually very simple and, for $p = 2$, uses only the…

Analysis of PDEs · Mathematics 2024-08-20 Giovanni Di Fratta , Francesco Solombrino

The purpose of this paper is to construct a new class of discrete generalized Korn's inequalities for piecewise H2 vector fields in three-dimensional space. The resulting Korn's inequalities are different from the standard Korn's…

Numerical Analysis · Mathematics 2022-07-05 David M. Williams , Qingguo Hong

We give an elementary estimate that entails and generalises numerous Korn inequalities scattered in the literature. As special instances, we obtain general Korn-type inequalities involving normal or tangential trace components, or lower…

Analysis of PDEs · Mathematics 2025-10-01 Franz Gmeineder , Endre Süli , Tabea Tscherpel

This work provides the foundation for the finite element analysis of an elliptic problem which is the rotational analogue of the $p$-Laplacian and which appears as a model of the magnetic induction in a high-temperature superconductor…

Functional Analysis · Mathematics 2018-08-21 Marc Laforest

We prove the $p$-parity conjecture for elliptic curves over global fields of characteristic $p > 3$. We also present partial results on the $\ell$-parity conjecture for primes $\ell \neq p$.

Number Theory · Mathematics 2019-02-20 Fabien Trihan , Christian Wuthrich

Geometric rigidity states that a gradient field which is $L^p$-close to the set of proper rotations is necessarily $L^p$-close to a fixed rotation, and is one key estimate in nonlinear elasticity. In several applications, as for example in…

Analysis of PDEs · Mathematics 2015-04-29 Sergio Conti , Georg Dolzmann , Stefan Müller

We give sharp conditions for the limiting Korn-Maxwell-Sobolev inequalities \begin{align*} \lVert P\rVert_{{\dot{W}}{^{k-1,\frac{n}{n-1}}}(\mathbb{R}^n)}\le…

Analysis of PDEs · Mathematics 2024-05-20 Franz Gmeineder , Peter Lewintan , Jean Van Schaftingen

We prove an $l^p$ decoupling inequality for hypersurfaces with nonzero Gaussian curvature and use it to derive a corresponding $l^p$ decoupling for curves not contained in a hyperplane. This extends our earlier work from [2]

Classical Analysis and ODEs · Mathematics 2014-07-02 Jean Bourgain , Ciprian Demeter

We present the converse to a higher dimensional, scale-invariant version of a classical theorem of F. and M. Riesz. More precisely, for $n\geq 2$, for an ADR domain $\Omega\subset \re^{n+1}$ which satisfies the Harnack Chain condition plus…

Classical Analysis and ODEs · Mathematics 2015-01-14 Steve Hofmann , José María Martell , Ignacio Uriarte-Tuero

Let $1 < p < \infty$ and let $\Omega$ be an open and bounded set of $\mathbb R^n$. We establish classical Korn inequalities \[ \inf_{\substack{v \in L^p(\Omega)\\\mathcal A v = 0}} \|u - v\|_{W^{k,p}(\Omega)} \le C \| \mathcal A…

Analysis of PDEs · Mathematics 2023-02-02 Adolfo Arroyo-Rabasa
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