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Related papers: Liouville energy on a topological two sphere

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In this paper, we study the Liouville-type equation \[\Delta ^2 u-\lambda_1\kappa\Delta u+\lambda_2\kappa^2(1-\mathrm e^{4u})=0\] on a closed Riemannian manifold \((M^4,g)\) with \(\operatorname{Ric}\geqslant 3\kappa g\) and \(\kappa>0\).…

Analysis of PDEs · Mathematics 2025-08-21 Xi-Nan Ma , Tian Wu , Xiao Zhou

We study the triviality of the solutions of weighted superlinear heat equations on Riemannian manifolds with nonnegative Ricci tensor. We prove a Liouville--type theorem for solutions bounded from below with nonnegative initial data, under…

Analysis of PDEs · Mathematics 2019-10-04 Daniele Castorina , Carlo Mantegazza , Berardino Sciunzi

In \cite{LWZ}, we establish Liouville-type theorems and decay estimates for solutions of a class of high order elliptic equations and systems without the boundedness assumptions on the solutions. In this paper, we continue our work in…

Analysis of PDEs · Mathematics 2012-09-11 Guozhen Lu , Jiuyi Zhu

For $n\geq2,$ we obtain Liouville type theorems for minimal surface equations in half space $\mathbf R^n_+$ with affine Dirichlet boundary value or constant Neumann boundary value.

Analysis of PDEs · Mathematics 2019-11-19 Guosheng Jiang , Zhehui Wang , Jintian Zhu

In this talk we review some results concerning a mechanism for reducing the moduli space of a topological field theory to a proper submanifold of the ordinary moduli space. Such mechanism is explicitly realized in the example of constrained…

High Energy Physics - Theory · Physics 2009-10-28 D. Anselmi , P. Fre' , L. Girardello , P. Soriani

We prove that subharmonic functions of finite order on finite dimensional real space, bounded from above outside of some asymptotically small sets on spheres, are bounded from above everywhere. It follows that subharmonic functions of…

Complex Variables · Mathematics 2020-09-11 Bulat N. Khabibullin

We prove a Liouville theorem for the plurisubharmonic functions on complete Kaelher manifolds. As the applications, we prove a splitting theorem for complete Kaehler manifolds with nonnegative biscetional curvature in terms of the linear…

Differential Geometry · Mathematics 2007-05-23 Lei Ni , Luen-Fai Tam

We show that the quantization of energy for Willmore spheres into closed Riemannian manifolds holds provided that the Willmore energy and the area are uniformly bounded. The analogous energy quantization result holds for Willmore surfaces…

Analysis of PDEs · Mathematics 2021-12-28 Alexis Michelat , Andrea Mondino

In this paper, we prove a Liouville theorem for holomorphic functions on a class of complete Gauduchon manifolds. This generalizes a result of Yau for complete K\"ahler manifolds to the complete non-K\"ahler case.

Differential Geometry · Mathematics 2018-05-30 Yuang Li , Chuanjing Zhang , Xi Zhang

In this note, we provide a very simple proof of the uniformization theorem of Riemann surfaces by Ricci flow. The argument builds on a refinement of Hamilton's isoperimetric estimate for the Ricci flow on the two-sphere.

Differential Geometry · Mathematics 2024-08-27 Yucheng Ji

We investigate the emergence of finite-amplitude non-zonal flows on the sphere $\mathbb{S}^2$ arising from stationary solutions to the 2D Euler equations. By restricting the Laplace-Beltrami eigenspace to the invariant subspace of the…

Analysis of PDEs · Mathematics 2026-04-14 Yuri Cacchiò

We show uniqueness of classical solutions of the normalised two-dimensional Hamilton-Ricci flow on closed, smooth manifolds for smooth data among solutions satisfying (essentially) only a uniform bound for the Liouville energy and a natural…

Analysis of PDEs · Mathematics 2016-01-27 Franziska Borer

In this paper we study topological properties of an integrable case for Euler's equations on the Lie algebra $\textrm{so}(4)$, which can be regarded as an analogue of the classical Kovalevskaya case in rigid body dynamics. In particular,…

Differential Geometry · Mathematics 2023-01-04 Ivan Kozlov

We develop a perturbative expansion of quantum Liouville theory on the pseudosphere around the background generated by heavy charges. Explicit results are presented for the one and two point functions corresponding to the summation of…

High Energy Physics - Theory · Physics 2008-11-26 Pietro Menotti , Erik Tonni

We study the topological entropy of the Lagrangian flow restricted to an energy level $E_{L}^{-1}(c) \subset TM$ for $ c >e_0(L)$. We prove that if the flow of the Tonelli Lagrangian $ L: M \to \mathbb{R}$, on a closed manifold of dimension…

Dynamical Systems · Mathematics 2024-02-20 Gonzalo Contreras , José Antônio G. Miranda , Luiz Gustavo Perona

A first-order Liouville theorem is obtained for random ensembles of uniformly parabolic systems under the mere qualitative assumptions of stationarity and ergodicity. Furthermore, the paper establishes, almost surely, an intrinsic…

Analysis of PDEs · Mathematics 2017-06-13 Peter Bella , Alberto Chiarini , Benjamin Fehrman

The reduced system in the problem of the inertial motion of a rigid body with a fixed point (the Euler case) is equivalent, by the Maupertuis principle, to some geodesic flow on the 2-sphere. We describe the phase topology of this case…

Exactly Solvable and Integrable Systems · Physics 2014-08-27 Mikhail P. Kharlamov

We consider the formation of singularities along the Calabi flow with the assumption of the uniform Sobolev constant. In particular, on K\"ahler surface we show that any "maximal bubble" has to be a scalar flat ALE K\"ahler metric. In some…

Differential Geometry · Mathematics 2009-12-24 Xiuxiong Chen , Weiyong He

We study N=2 Liouville theory with arbitrary central charge in the presence of boundaries. After reviewing the theory on the sphere and deriving some important structure constants, we investigate the boundary states of the theory from two…

High Energy Physics - Theory · Physics 2009-11-10 Kazuo Hosomichi

The classical Liouville theorem states that a bounded harmonic function on all of $\RR^n$ must be constant. In the early 1970s, S.T. Yau vastly generalized this, showing that it holds for manifolds with nonnegative Ricci curvature.…

Differential Geometry · Mathematics 2019-02-26 Tobias Holck Colding , William P. Minicozzi