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Related papers: Overtwisted energy-minimizing curl eigenfields

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We study the spectral properties of curl, a linear differential operator of first order acting on differential forms of appropriate degree on an odd-dimensional closed oriented Riemannian manifold. In three dimensions its eigenvalues are…

Differential Geometry · Mathematics 2019-03-08 Christian Baer

We show that for almost every given symmetry transformation of a Riemannian manifold there exists an eigenvector field of the curl operator, corresponding to a non-zero eigenvalue, which obeys the symmetry. More precisely, given a smooth,…

Analysis of PDEs · Mathematics 2022-02-22 Wadim Gerner

In this paper, sufficient conditions for contact $(+1)$-surgeries along Legendrian knots in contact rational homology 3-spheres to have vanishing contact invariants or to be overtwisted are given. They can be applied to study contact…

Geometric Topology · Mathematics 2020-11-03 Fan Ding , Youlin Li , Zhongtao Wu

Geometrical arrangements of minimum energy of a system of identical repelling particles in two dimensions are studied for different forms of the interaction potential. Stability conditions for the triangular structure are derived, and some…

Materials Science · Physics 2009-10-31 E. A. Jagla

We introduce a curvature-dimension condition for autonomous Lagrangians on weighted manifolds, which depends on the Euler-Lagrange dynamics on a single energy level. By generalizing Klartag's needle decomposition technique to the Lagrangian…

Differential Geometry · Mathematics 2026-02-11 Rotem Assouline

Current quadratic smoothness energies for curved surfaces either exhibit distortions near the boundary due to zero Neumann boundary conditions, or they do not correctly account for intrinsic curvature, which leads to unnatural-looking…

Graphics · Computer Science 2020-04-29 Oded Stein , Alec Jacobson , Max Wardetzky , Eitan Grinspun

We develop a new approach to the study of spectral asymmetry. Working with the operator $\operatorname{curl}:=*\mathrm{d}$ on a connected oriented closed Riemannian 3-manifold, we construct, by means of microlocal analysis, the asymmetry…

Differential Geometry · Mathematics 2026-01-23 Matteo Capoferri , Dmitri Vassiliev

In this article we apply a Bochner type formula to show that on a compact conformally flat riemannian manifold (or half-conformally flat in dimension 4) certain types of orthogonal almost-complex structures, if they exist, give the absolute…

Differential Geometry · Mathematics 2007-05-23 G. Bor , L. Hernández-Lamoneda , M. Salvai

This paper investigates the contact structures and dynamics of stochastic vector bundles, leading to the formulation of the least constraint theorem. It is found that the probability space of stochastic vector bundles possesses an…

Mathematical Physics · Physics 2024-12-30 D. Y. Zhong , G. Q. Wang

We shall give a twisted Dirac structure on the space of irreducible connections on a SU(n)-bundle over a three-manifold, and give a family of twisted Dirac structures on the space of irreducible connections on the trivial SU(n)-bundle over…

Differential Geometry · Mathematics 2021-06-22 Yuji Hirota , Tosiaki Kori

In the present paper we develop the theory of minimization for energies with multivariate kernels, i.e. energies, in which pairwise interactions are replaced by interactions between triples or, more generally, $n$-tuples of particles. Such…

Classical Analysis and ODEs · Mathematics 2023-03-15 Dmitriy Bilyk , Damir Ferizović , Alexey Glazyrin , Ryan Matzke , Josiah Park , Oleksandr Vlasiuk

Let (X,L) be a polarized projective complex manifold. We show, by a simple toric one-dimensional example, that Mabuchi's K-energy functional on the geodesically complete space of bounded positive (1,1)-forms in the first Chern class of L,…

Differential Geometry · Mathematics 2017-11-01 Robert J. Berman

It's known from from work of Hofer, Wysocki, and Zehnder [1996] and Bourgeois [2002] that in a contact manifold equipped with either a nondegenerate or Morse-Bott contact form, a finite-energy pseudoholomorphic curve will be asymptotic at…

Symplectic Geometry · Mathematics 2017-05-19 Richard Siefring

Let $X$ be a Hyperk\"ahler manifold, and let $H$ be an ample divisor on $X$. We give a lower bound in terms of the Beauville-Bogomolov form $q(H)$ for the twisted cotangent bundle $\Omega_X \otimes H$ to be pseudoeffective. If $X$ is…

Algebraic Geometry · Mathematics 2019-06-28 Fabrizio Anella , Andreas Höring

We investigate the curved thin-film limit of a family of perturbed Dirichlet energies in the space of $H^1$ Sobolev maps defined in a tubular neighborhood of an $(n - 1)$-dimensional submanifold $N$ of $\mathbb{R}^n$ and with values in an…

Analysis of PDEs · Mathematics 2022-12-16 Giovanni Di Fratta , Valeriy Slastikov

In this paper, we study a shape optimization problem for the torsional energy associated with a domain contained in an infinite cylinder, under a volume constraint. We prove that a minimizer exists for all fixed volumes and show some of its…

Analysis of PDEs · Mathematics 2025-08-06 Paolo Caldiroli , Alessandro Iacopetti , Filomena Pacella

We extract a nonnegative integer-valued invariant, which we call the "order of algebraic torsion", from the Symplectic Field Theory of a closed contact manifold, and show that its finiteness gives obstructions to the existence of symplectic…

Symplectic Geometry · Mathematics 2012-03-12 Janko Latschev , Chris Wendl

In this paper we look for minimizers of the energy functional for isotropic compressible elasticity taking into consideration the effect of a gravitational field induced by the body itself. We consider the displacement problem in which the…

Analysis of PDEs · Mathematics 2020-12-11 Pablo V. Negrón-Marrero , Jeyabal Sivaloganathan

For a given family of smooth closed curves $\gamma^1,...,\gamma^\alpha\subset\mathbb{R}^3$ we consider the problem of finding an elastic \emph{connected} compact surface $M$ with boundary $\gamma=\gamma^1\cup...\cup\gamma^\alpha$. This is…

Optimization and Control · Mathematics 2021-09-30 Matteo Novaga , Marco Pozzetta

This paper considers paired operators in the context of the Lebesgue Hilbert space $L^2$ on the unit circle and its subspace, the Hardy space $H^2$. The kernels of such operators, together with their analytic projections, which are…

Functional Analysis · Mathematics 2025-01-22 M. Cristina Câmara , Jonathan R. Partington
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