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Related papers: The elastic flow of curves in the hyperbolic plane

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We examine the L^2-gradient flow of Euler's elastic energy for closed curves in hyperbolic space and prove convergence to the global minimizer for initial curves with elastic energy bounded by 16. We show the sharpness of this bound by…

Analysis of PDEs · Mathematics 2020-03-20 Marius Müller , Adrian Spener

The free elastic flow is the $L^2$-gradient flow for Euler's elastic energy, or equivalently the Willmore flow with translation invariant initial data. In contrast to elastic flows under length penalisation or preservation, it is more…

Analysis of PDEs · Mathematics 2025-06-24 Tatsuya Miura , Glen Wheeler

We consider a curve with boundary points free to move on a line in $\mathbb R^2$, which evolves by the $L^2$--gradient flow of the elastic energy, that is a linear combination of the Willmore and the length functional. For such planar…

Analysis of PDEs · Mathematics 2024-06-26 Antonia Diana

We study the length-preserving elastic flow of curves in arbitrary codimension with free boundary on hypersurfaces. This constrained gradient flow is given by a nonlocal evolution equation with nonlinear higher-order boundary conditions. We…

Analysis of PDEs · Mathematics 2025-03-18 Anna Dall'Acqua , Manuel Schlierf

We study the evolution of curves with fixed length and clamped boundary conditions moving by the negative $L^2$-gradient flow of the elastic energy. For any initial curve lying merely in the energy space we show existence and parabolic…

Analysis of PDEs · Mathematics 2024-07-03 Fabian Rupp , Adrian Spener

We study the elastic flow of closed curves and of open curves with clamped boundary conditions in the hyperbolic plane. While global existence and convergence toward critical points for initial data with sufficiently small energy is already…

Analysis of PDEs · Mathematics 2024-08-30 Manuel Schlierf

In this paper we study the $L^2$-gradient flow of the penalized elastic energy on networks of $q$-curves in $\R^{n}$ for $q \geq 3$. Each curve is fixed at one end-point and at the other is joint to the other curves at a movable…

Analysis of PDEs · Mathematics 2020-11-26 Anna Dall'Acqua , Chun-Chi Lin , Paola Pozzi

We collect and present in a unified way several results in recent years about the elastic flow of curves and networks, trying to draw the state of the art of the subject. In particular, we give a complete proof of global existence and…

Analysis of PDEs · Mathematics 2023-03-30 Carlo Mantegazza , Alessandra Pluda , Marco Pozzetta

For a given $p\in[2,+\infty)$, we define the $p$-elastic energy $\mathscr{E}$ of a closed curve $\gamma:\mathbb{S}^1\to M$ immersed in a complete Riemannian manifold $(M,g)$ as the sum of the length of the curve and the $L^p$--norm of its…

Analysis of PDEs · Mathematics 2021-09-30 Marco Pozzetta

In this paper, we consider the $L^2$-gradient flow for the modified $p$-elastic energy defined on planar closed curves. We formulate a notion of weak solution for the flow and prove the existence of global-in-time weak solutions with $p \ge…

Analysis of PDEs · Mathematics 2021-06-18 Shinya Okabe , Glen Wheeler

The elastic flow, which is the $L^2$-gradient flow of the elastic energy, has several applications in geometry and elasticity theory. We present stable discretizations for the elastic flow in two-dimensional Riemannian manifolds that are…

Numerical Analysis · Mathematics 2019-11-01 John W. Barrett , Harald Garcke , Robert Nürnberg

For every $p\in\mathbb{R}$, we study $p$-elastic curves in the hyperbolic plane $\mathbb{H}^2$ and in the de Sitter $2$-space $\mathbb{H}_1^2$. We analyze the existence of closed $p$-elastic curves with nonconstant curvature showing that in…

Differential Geometry · Mathematics 2026-01-23 Alvaro Pampano , Miraj Samarakkody , Hung Tran

We consider closed planar curves with fixed length and arbitrary winding number whose elastic energy depends on an additional density variable and a spontaneous curvature. Working with the inclination angle, the associated $L^2$-gradient…

Analysis of PDEs · Mathematics 2024-02-16 Anna Dall'Acqua , Leonie Langer , Fabian Rupp

We study an $L^{2}$-type gradient flow of an immersed elastic curve in $\mathbb{R}^{2}$ whose endpoints repel each other via a Coulomb potential. By De Giorgi's minimizing movements scheme we prove long-time existence of the flow. The work…

Analysis of PDEs · Mathematics 2019-02-22 Rufat Badal

We study the evolution of closed inextensible planar curves under a second order flow that decreases the $p$-elastic energy. A short time existence result for $p \in (1,\infty)$ is obtained via a minimizing movements method. For $p = 2$,…

Differential Geometry · Mathematics 2018-11-19 Shinya Okabe , Paola Pozzi , Glen Wheeler

We derive an $H^{-1}$-gradient flow of the elastic energy which preserves the enclosed area of evolving planar curves. For this new sixth-order evolution equation, we prove a global existence result. Additionally, by penalizing the length,…

Analysis of PDEs · Mathematics 2025-03-21 Leonie Langer

We describe ideal incompressible hydrodynamics on the hyperbolic plane which is an infinite surface of constant negative curvature. We derive equations of motion, general symmetries and conservation laws, and then consider turbulence with…

Chaotic Dynamics · Physics 2015-06-18 Gregory Falkovich , Krzysztof Gawedzki

We define a new notion of translations in the hyperbolic plane and explicitly solve the equation of the curve shortening flow. Next, we consider the class of ancient convex solutions and solve the equation of the curve shortening flow when…

Differential Geometry · Mathematics 2026-05-14 Ivan Krznarić , Rafael López

For a hypersurface in ${\mathbb R}^3$, Willmore flow is defined as the $L^2$--gradient flow of the classical Willmore energy: the integral of the squared mean curvature. This geometric evolution law is of interest in differential geometry,…

Numerical Analysis · Mathematics 2021-05-06 John W. Barrett , Harald Garcke , Robert Nürnberg

In arXiv:2205.02920 a variant of the classical elastic flow for closed curves in $\mathbb{R}^{n}$ was introduced, that is more suitable for numerical purposes. Here we investigate the long-time properties of such evolution demonstrating…

Analysis of PDEs · Mathematics 2023-04-05 Paola Pozzi
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