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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

It is well known that Korn inequality plays a central role in the theory of linear elasticity. In the present work we prove new asymptotically sharp Korn and Korn-like inequalities in thin curved domains with a non-constant thickness. This…

Analysis of PDEs · Mathematics 2013-12-13 Davit Harutyunyan

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

The goal of this work is to show that the generalized Korn inequality that replaces the symmetric part of the differential matrix in the classical Korn inequality by its trace-free part is valid over John domains and weighted Sobolev…

Analysis of PDEs · Mathematics 2016-12-15 Fernando López García

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

We establish discrete Korn type inequalities for particle systems within the general class of objective structures that represents a far reaching generalization of crystal lattice structures. For space filling configurations whose symmetry…

Analysis of PDEs · Mathematics 2025-03-12 Bernd Schmidt , Martin Steinbach

In this paper we show that Korn's inequality \cite{ref:korn1906} holds for vector fields with a zero normal or tangential trace on a subset (of positive measure) of the boundary of Lipschitz domains. We further show that the validity of…

Analysis of PDEs · Mathematics 2019-12-03 Sebastián Domínguez , Nilima Nigam

We present a piecewise Korn inequality for generalized special functions of bounded deformation ($GSBD^2$) in a planar setting generalizing the classical result in elasticity theory to the setting of functions with jump discontinuities. We…

Analysis of PDEs · Mathematics 2018-04-27 Manuel Friedrich

A nonlinear Korn inequality based on the Green-Saint Venant strain tensor is proved, whenever the displacement is in the Sobolev space $W^{1,p}$, $p\geq 2$, under Dirichlet conditions on a part of the boundary. The inequality can be useful…

Mathematical Physics · Physics 2018-05-03 Alessandro Musesti

We prove functional inequalities on vector fields on the Euclidean space when it is equipped with a bounded measure that satisfies a Poincar\'e inequality, and study associated self-adjoint operators. The weighted Korn inequality compares…

Analysis of PDEs · Mathematics 2020-12-14 Kleber Carrapatoso , Jean Dolbeault , Frédéric Hérau , Stéphane Mischler , Clément Mouhot

We generalize Killing equations to a test particle system which is subjected to external force. We relax the conservation condition by virtue of reparametrization invariance of a particle orbit. As a result, we obtain generalized Killing…

General Relativity and Quantum Cosmology · Physics 2010-03-04 Takahisa Igata , Tatsuhiko Koike , Hideki Ishihara

We prove constructive estimates for elastic plates modelled by the Reissner-Mindlin theory and made by general anisotropic material. Namely, we obtain a generalized Korn inequality which allows to derive quantitative stability and global…

Analysis of PDEs · Mathematics 2016-10-06 Antonino Morassi , Edi Rosset , Sergio Vessella

The Killing tensor equation is a first order differential equation on symmetric covariant tensors that generalises to higher rank the usual Killing vector equation on Riemannian manifolds. We view this more generally as an equation on any…

Differential Geometry · Mathematics 2022-04-14 A. Rod Gover , Thomas Leistner

Korn's inequality has been at the heart of much exciting research since its first appearance in the beginning of the 20th century. Many are the applications of this inequality to the analysis and construction of discretizations of a large…

Analysis of PDEs · Mathematics 2025-08-26 Gonzalo A. Benavides , Sebastián A. Domínguez-Rivera

Koutras has proposed some methods to construct reducible proper conformal Killing tensors and Killing tensors (which are, in general, irreducible) when a pair of orthogonal conformal Killing vectors exist in a given space. We give the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Raffaele Rani , S. Brian Edgar , Alan Barnes

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

We address the problem of how to characterise when a rank-two conformal Killing tensor is the trace-free part of a Killing tensor for a metric in the conformal class. We call such a metric a Killing scale. Our approach is via differential…

Differential Geometry · Mathematics 2024-06-26 A. Rod Gover , Jonathan Kress , Thomas Leistner

We introduce a novel approach for learning memory kernels in Generalized Langevin Equations. This approach initially utilizes a regularized Prony method to estimate correlation functions from trajectory data, followed by regression over a…

Machine Learning · Statistics 2025-05-22 Quanjun Lang , Jianfeng Lu

We consider Riesz' fractional gradient and a truncated version of it. The equations of nonlocal nonlinear elasticity based on those gradients are known. We perform a formal linearization and arrive at the equations of linear elasticity…

Analysis of PDEs · Mathematics 2023-03-13 J. C. Bellido , J. Cueto , C. Mora-Corral

We introduce the analog of Kramers-Kronig dispersion relations for correlators of four scalar operators in an arbitrary conformal field theory. The correlator is expressed as an integral over its 'absorptive part', defined as a double…

High Energy Physics - Theory · Physics 2020-07-06 Dean Carmi , Simon Caron-Huot
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