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This paper considers the prescribed zero scalar curvature and mean curvature problem on the n-dimensional Euclidean ball for $n \geq 3$. Given a rotationally symmetric function $H:\partial B^{n}\rightarrow R$, in this work, we will prove…

微分几何 · 数学 2024-11-06 Alvaro Ortiz , Gonzalo Garcia

In this paper, we investigate a boundary case of the classical prescribed curvature problem. We focus on prescribing the scalar curvature function K and the boundary mean curvature H on the standard ball. Our analysis extendes previous…

偏微分方程分析 · 数学 2025-03-12 Luca Battaglia , Yixing Pu

The problem of prescribing conformally the scalar curvature on a closed Riemannian manifold of negative Yamabe invariant is always solvable, when the function $K$ to be prescribed is strictly negative, while sufficient and necessary…

微分几何 · 数学 2023-10-03 Martin Mayer , Chaona Zhu

In this work, we study the Yamabe flow corresponding to the prescribed scalar curvature problem on compact Riemannian manifolds with negative scalar curvature. The long time existence and convergence of the flow are proved under appropriate…

微分几何 · 数学 2018-12-26 Inas Amacha , Rachid Regbaoui

We consider the problem of finding a metric in a given conformal class with prescribed nonpositive scalar curvature and nonpositive boundary mean curvature on a compact manifold with boundary, and establish a necessary and sufficient…

微分几何 · 数学 2021-02-23 Vladmir Sicca , Gantumur Tsogtgerel

Let $(M, g)$ be a compact Riemannian manifold with boundary $\partial M$. Given a function $f$ on $\partial M$, we consider the problem of finding a conformal metric of $g$ with zero scalar curvature in $M$ and prescribed mean curvature $f$…

微分几何 · 数学 2026-05-26 Jiashu Shen , Hongyi Sheng

The paper is an attempt to resolve the prescribed Chern scalar curvature problem. We look for solutions within the conformal class of a fixed Hermitian metric. We divide the problem in three cases, according to the sign of the Gauduchon…

微分几何 · 数学 2022-05-10 Elia Fusi

The paper studies the problem of prescribing positive cross curvature on the three-dimensional sphere. We produce several existence results and an example of non-uniqueness, disproving a conjecture of Hamilton's.

微分几何 · 数学 2023-05-29 Timothy Buttsworth , Artem Pulemotov

In this paper we study the problem of prescribing a fourth order conformal invariant (the Paneitz curvature) on the $n$-sphere, with $n\geq 5$. Using tools from the theory of critical points at infinity, we provide some topological…

偏微分方程分析 · 数学 2007-05-23 Mohamed Ben Ayed , Khalil El Mehdi

We study a fractional conformal curvature flow on the standard unit sphere and prove a perturbation result of the fractional Nirenberg problem with fractional exponent $\sigma \in (1/2,1)$. This extends the result of Chen-Xu (Invent. Math.…

微分几何 · 数学 2021-11-23 Xuezhang Chen , Pak Tung Ho

We illustrate an example of a generic, positive function K on a Riemannian manifold to be conformally prescribed as the scalar curvature, for which the corresponding Yamabe type L2-gradient flow exhibits non compact flow lines, while a…

微分几何 · 数学 2020-01-28 Martin Mayer

We prove the existence of metrics with prescribed $Q$-curvature under natural assumptions on the sign of the prescribing function and the background metric. In the dimension four case, we also obtain existence results for curvature forms…

微分几何 · 数学 2019-03-22 Flávio França Cruz , Tiarlos Cruz

This note intends to demonstrate how to discuss scalar curvature functions' admissibility on bundles by directly applying some of the Kazdan--Warner results. Proofs of the concept include determining which functions are realizable as scalar…

微分几何 · 数学 2023-05-16 Leonardo Francisco Cavenaghi , Llohann Dallagnol Sperança

We give a proof of the Kazdan-Warner conjecture concerning the prescribed scalar curvature problem in the null case.

微分几何 · 数学 2007-05-23 Olivier Druet

We prove a criterion of existence of solutions conjectured by C. C. Chen and C. S. Lin [20] for the prescribed scalar curvature problem on the standard n-dimensional sphere.

微分几何 · 数学 2020-09-15 Hichem Chtioui

On a compact manifold $M$ with boundary $\partial M$, we study the problem of prescribing the scalar curvature in $M$ and the mean curvature on the boundary $\partial M$ simultaneously. To do this, we introduce the notion of singular…

微分几何 · 数学 2020-08-28 Pak Tung Ho , Yen-Chang Huang

We consider modified scalar curvature functions for Riemannian manifolds equipped with smooth measures. Given a Riemannian submersion whose fiber transport is measure-preserving up to constants, we show that the modified scalar curvature of…

微分几何 · 数学 2007-05-23 John Lott

Let $(X, g^+)$ be an asymptotically hyperbolic manifold and $(M, [\hat{h}])$ its conformal infinity. Our primary aim in this paper is to introduce the prescribed fractional scalar curvature problem on $M$ and provide solutions under various…

偏微分方程分析 · 数学 2018-08-31 Seunghyeok Kim

We complete the theoretical framework required for the construction of a Morse homology theory for certain types of forced mean curvature flows. The main result of this paper describes the asymptotic behaviour of these flows as the forcing…

微分几何 · 数学 2016-01-15 Graham Smith

In this paper we study the problem of prescribing the Gaussian curvature under a conformal change of the metric. We are concerned with the problem posed on a subdomain of the 2-sphere under Neumann boundary conditions of the conformal…

偏微分方程分析 · 数学 2014-05-21 Rafael López-Soriano , David Ruiz