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Related papers: Some Remarks on Pohozaev-Type Identities

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We characterize all translation invariant half planar maps satisfying a certain natural domain Markov property. For p-angulations with p \ge 3 where all faces are simple, we show that these form a one-parameter family of measures…

Probability · Mathematics 2014-02-27 Omer Angel , Gourab Ray

Although quantitative stability for critical points of the Sobolev and fractional Sobolev inequalities has been extensively studied, the corresponding stability theory for critical points of the Hardy--Littlewood--Sobolev (HLS) inequality…

Analysis of PDEs · Mathematics 2026-05-20 Lu Chen , Guozhen Lu , Hanli Tang

In this paper, we investigate critical maps of the horizontal energy functional $E_{H,\widetilde{H}}(f)$ for maps between two pseudo-Hermitian manifolds $(M^{2m+1},H(M),J,\theta )$ and $(N^{2n+1},\widetilde{H}(N),…

Differential Geometry · Mathematics 2016-10-05 Yuxin Dong

In this note we present the Pohozaev identity for the fractional Laplacian. As a consequence of this identity, we prove the nonexistence of nontrivial bounded solutions to semilinear problems with supercritical nonlinearities in star-shaped…

Analysis of PDEs · Mathematics 2012-05-03 Xavier Ros-Oton , Joaquim Serra

M. Kruskal showed that each continuous-time nearly-periodic dynamical system admits a formal $U(1)$ symmetry, generated by the so-called roto-rate. When the nearly-periodic system is also Hamiltonian, Noether's theorem implies the existence…

Dynamical Systems · Mathematics 2021-12-17 J. W. Burby , E. Hirvijoki , M. Leok

We prove the regularity of weak 1/2-harmonic maps from the real line into a sphere. The key point in our result is first a formulation of the 1/2-harmonic map equation in the form of a non-local linear Schr\"odinger type equation with a…

Analysis of PDEs · Mathematics 2009-07-24 Francesca Da Lio , Tristan Riviere

This paper is focused on the solvability of a family of nonlinear elliptic systems defined in $\mathbb{R}^N$. Such equations contain Hardy potentials and Hardy-Sobolev criticalities coupled by a possible critical Hardy-Sobolev term. That…

Analysis of PDEs · Mathematics 2023-06-22 Rafael López-Soriano , Alejandro Ortega

Let M = R n or possibly a Riemannian, non compact manifold. We consider semi-excited resonances for a h-differential operator H(x, hD x ; h) on L 2 (M) induced by a non-degenerate periodic orbit $\gamma$ 0 of semi-hyperbolic type, which is…

Analysis of PDEs · Mathematics 2019-07-15 Hanen Louati , Michel Rouleux

The identity map of an Einstein manifold is a critical point of both the classical energy functional and the conformal-bienergy functional. In this paper, we investigate the conformal-biharmonic stability of the identity map of compact…

Differential Geometry · Mathematics 2026-04-23 Volker Branding , Simona Nistor , Cezar Oniciuc

For stationary harmonic maps between Riemannian manifolds, we provide a necessary and sufficient condition for the uniform interior and boundary gradient estimates in terms of the total energy of maps. We also show that if analytic target…

Differential Geometry · Mathematics 2016-09-07 Fang-Hua Lin

In this paper, we consider maps from pseudo-Hermitian manifolds to K\"{a}hler manifolds and introduce partial energy functionals for these maps. First, we obtain a foliated Lichnerowicz type result on general pseudo-Hermitian manifolds,…

Differential Geometry · Mathematics 2025-04-03 Yuxin Dong , Hui Liu , Biqiang Zhao

In this paper we consider sequences of $p$-harmonic maps, $p>2$, from a closed Riemann surface $\Sigma$ into the $n$-dimensional sphere $\mathbb{S}^n$ with uniform bounded energy. These are critical points of the energy $E_p(u)…

Analysis of PDEs · Mathematics 2025-02-14 Francesca Da Lio , Tristan Rivière , Dominik Schlagenhauf

Given a half-harmonic map $u\in \dot H^{\frac{1}{2},2}(\mathbb{R},\mathbb{S}^1)$ minimizing the fractional Dirichlet energy under Dirichlet boundary conditions in $\mathbb{R}\setminus I$, we show the existence of a second half-harmonic map,…

Analysis of PDEs · Mathematics 2025-07-11 Luca Martinazzi , Ali Hyder

In this study, we explore the partial identification of nonseparable models with continuous endogenous and binary instrumental variables. We show that the structural function is partially identified when it is monotone or concave in the…

Methodology · Statistics 2023-06-22 Takuya Ishihara

The half-wave maps equation is a nonlocal geometric equation arising in the continuum dynamics of Haldane-Shashtry and Calogero-Moser spin systems. In high dimensions $n\geq4$, global wellposedness for data which is small in the critical…

Analysis of PDEs · Mathematics 2024-03-22 Katie Marsden

An approximation theorem of Youngs (1948) asserts that a continuous map between compact oriented topological 2-manifolds (surfaces) is monotone if and only if it is a uniform limit of homeomorphisms. Analogous approximation of Sobolev…

Complex Variables · Mathematics 2016-01-27 Tadeusz Iwaniec , Jani Onninen

This article concerns about the existence and multiplicity of weak solutions for the following nonlinear doubly nonlocal problem with critical nonlinearity in the sense of Hardy-Littlewood-Sobolev inequality \begin{equation*} \left\{…

Analysis of PDEs · Mathematics 2017-11-09 J. Giacomoni , Tuhina Mukherjee , K. Sreenadh

In this paper, we show the existence of a nontrivial weak solution for a nonlinear problem involving the fractional $p$-Laplacian operator and a Berestycki-Lions type nonlinearity. This solution satisfies a Pohozaev identity. Moreover, we…

Analysis of PDEs · Mathematics 2024-04-05 Vincenzo Ambrosio

In this work, we study the super-Liouville equation on the sphere with positive coefficient functions. We first examine the behavior of the equation under conformal transformations and derive a Pohozaev-type identity, which generalizes the…

Analysis of PDEs · Mathematics 2026-05-05 Mingyang Han , Chunqin Zhou

We propose a generalization of the so-called rational map ansatz on the Euclidean space $\mathbb{R}^3$, for any compact simple Lie group $G$ such that $G/{\widehat K}\otimes U(1)$ is an Hermitian symmetric space, for some subgroup…

High Energy Physics - Theory · Physics 2025-04-11 L. A. Ferreira , L. R. Livramento