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Related papers: Prescribing the scalar curvature in the null case

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We solve the modified Kazdan-Warner problem of finding metrics with prescribed scalar curvature and unit total volume.

Differential Geometry · Mathematics 2014-04-29 Shinichiroh Matsuo

This paper is devoted to the problem of prescribing the scalar curvature under zero boundary conditions. Using dynamical and topological methods involving the study of critical points at infinity of the associated variational problem, we…

Analysis of PDEs · Mathematics 2007-05-23 Mohamed Ben Ayed , Khalil El Mehdi , Mohameden Ould Ahmedou

In this paper, we investigate the noncompact prescribed Chern scalar curvature problem which reduces to solve a Kazdan-Warner type equation on noncompact non-K\"{a}hler manifolds. By introducing an analytic condition on noncompact…

Differential Geometry · Mathematics 2023-04-28 Di Wu , Xi Zhang

In this paper, we investigate a Kazdan-Warner problem on compact K\"ahler surfaces, which corresponds to prescribing sign-changing Chern scalar curvatures, and establish a Chen-Li type existence theorem on compact K\"ahler surfaces when the…

Differential Geometry · Mathematics 2025-06-05 Weike Yu

In this paper we address two boundary cases of the classical Kazdan-Warner problem. More precisely, we consider the problem of prescribing the Gaussian and boundary geodesic curvature on a disk of R^2, and the scalar and mean curvature on a…

Analysis of PDEs · Mathematics 2025-06-11 Luca Battaglia , Sergio Cruz-Blázquez , Angela Pistoia

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…

Differential Geometry · Mathematics 2023-05-16 Leonardo Francisco Cavenaghi , Llohann Dallagnol Sperança

We consider the case with boundary of the classical Kazdan-Warner problem in dimension greater or equal than three, i.e. the prescription of scalar and boundary mean curvatures via conformal deformations of the metric. We deal in particular…

Analysis of PDEs · Mathematics 2021-05-12 S. Cruz-Blázquez , A. Malchiodi , D. Ruiz

We study the prescribed scalar curvature problem, namely finding which function can be obtained as the scalar curvature of a metric in a given conformal class. We deal with the case of asymptotically hyperbolic manifolds and restrict…

Differential Geometry · Mathematics 2019-09-13 Romain Gicquaud

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…

Differential Geometry · Mathematics 2023-10-03 Martin Mayer , Chaona Zhu

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.

Differential Geometry · Mathematics 2020-09-15 Hichem Chtioui

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.

Differential Geometry · Mathematics 2023-05-29 Timothy Buttsworth , Artem Pulemotov

In this paper, we consider the indefinite scalar curvature problem on $R^n$. We propose new conditions on the prescribing scalar curvature function such that the scalar curvature problem on $R^n$ (similarly, on $S^n$) has at least one…

Differential Geometry · Mathematics 2008-10-24 Li Ma , Yihong Du

In this paper, we consider the problem of prescribing scalar curvature on n-sphere. Assume that the candidate curvature function $f$, which is allowed to change sign, satisfies some kind of Morse index or symmetry condition. By studying the…

Analysis of PDEs · Mathematics 2017-05-29 Hong Zhang

We derive Kazdan-Warner type identities for the boundary problem of prescribing nonconstant interior $Q$ curvature and boundary $T$ curvature on the upper hemisphere $\mathbb{S}^4_+$ by a conformal change of the standard metric. Using the…

Analysis of PDEs · Mathematics 2026-03-25 Sergio Cruz-Blázquez , Azahara DelaTorre

In this paper, we proved the normal scalar curvature conjecture and the Bottcher-Wenzel conjecture.

Differential Geometry · Mathematics 2007-11-26 Zhiqin Lu

Vertex scaling of piecewise linear metrics on surfaces introduced by Luo is a straightforward discretization of smooth conformal structures on surfaces. Combinatorial $\alpha$-curvature for vertex scaling of piecewise linear metrics on…

Differential Geometry · Mathematics 2022-08-11 Xu Xu , Chao Zheng

In this paper, we investigate the problem of prescribing Chern scalar curvatures on compact Hermitian manifolds with negative Gauduchon degree. By studying the convergence of the associated geometric flow, we obtain some existence results…

Differential Geometry · Mathematics 2023-04-19 Weike Yu

We first show that existence results due to Kazdan-Warner and Cruz-Vit\'orio can be extended to the category of manifolds with an isolated conical singularity. More precisely, we check that, under suitable conditions on the link manifold,…

Differential Geometry · Mathematics 2022-02-04 Levi Lopes de Lima

In this paper, we consider the problem of prescribing the scalar curvature under minimal boundary conditions on the standard four dimensional half sphere. We provide an Euler-Hopf type criterion for a given function to be a scalar curvature…

Analysis of PDEs · Mathematics 2016-09-07 M. Ben Ayed , K. El Mehdi , M. Ould Ahmedou

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…

Differential Geometry · Mathematics 2022-05-10 Elia Fusi
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