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In this paper we perform a fine blow-up analysis for a fourth order elliptic equation involving critical Sobolev exponent, related to the prescription of some conformal invariant on the standard sphere. We derive from this analysis some a…

Analysis of PDEs · Mathematics 2007-05-23 Zindine Djadli , Andrea Malchiodi , Mohameden Ould Ahmedou

In this paper, close surfaces are considered in 3-dimensional harmonic conformally flat space in point of the variation. It is shown that if the conformal vector field be tangent to surface and the sign of the mean curvature does not change…

Differential Geometry · Mathematics 2021-08-16 Najma mosadegh , Esmaiel Abedi

In this paper we consider a class of prescribing curvature type equations on half Euclidean balls. Under suitable assumptions on the scalar curvature function and boundary mean curvature function we prove a min-max type inequality and the…

Analysis of PDEs · Mathematics 2013-09-05 Mathew Gluck , Ying Guo , Lei Zhang

Scalar curvature constraints can be studied by means of splitting procedures. The success of this strategy depends on the control we can get on its splitting factors. We introduce canonical so-called minimal splitting factors. They have…

Differential Geometry · Mathematics 2022-03-30 Joachim Lohkamp

Prescribing conformally the scalar curvature of a Riemannian manifold as a given function consists in solving an elliptic PDE involving the critical Sobolev exponent. One way of attacking this problem consist in using subcritical…

Analysis of PDEs · Mathematics 2020-01-28 Andrea Malchiodi , Martin Mayer

We study the problem of prescribing the Paneitz curvature on higher dimensional spheres. Particular attention is paid to the blow-up points, i.e. the critical points at infinity of the corresponding variational problem. Using topological…

Analysis of PDEs · Mathematics 2007-05-23 Khalil El Mehdi

We consider the problem of finding a metric in a given conformal class with prescribed non-positive scalar curvature and non-positive boundary mean curvature on an asymptotically Euclidean manifold with inner boundary. We obtain a necessary…

Analysis of PDEs · Mathematics 2023-08-22 Vladmir Sicca , Gantumur Tsogtgerel

This article concerns a natural generalization of the classical asymptotic Plateau problem in hyperbolic space. We prove the existence of a smooth complete hypersurface of constant scalar curvature with a prescribed asymptotic boundary at…

Differential Geometry · Mathematics 2025-08-26 Bin Wang

In this paper we give sufficient conditions on a compact orbifold with an extremal Kaehler metric to admit a resolution with an extremal Kaehler metric. We also complete the Kaehler constant scalar curvature case.

Differential Geometry · Mathematics 2015-07-17 Claudio Arezzo , Riccardo Lena , Lorenzo Mazzieri

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…

Analysis of PDEs · Mathematics 2025-03-12 Luca Battaglia , Yixing Pu

Comparisons on $L^{n\over 2}$-norms of scalar curvatures between Riemannian metrics and standard metrics are obtained. The metrics are restricted to conformal classes or under certain curvature conditions.

dg-ga · Mathematics 2008-02-03 Man Chun Leung

In this paper we consider the problem of prescribing the Gaussian and geodesic curvature on a disk and its boundary, respectively, via a conformal change of the metric. This leads us to a Liouville-type equation with a nonlinear Neumann…

Analysis of PDEs · Mathematics 2018-06-19 S. Cruz-Blázquez , D. Ruiz

We give lower bounds, in terms of the Euler characteristic, for the $L^2$-norm of the Weyl curvature of closed Riemannian 4-manifolds. The same bounds were obtained by Gursky, in the case of positive scalar curvature metrics.

Differential Geometry · Mathematics 2007-05-23 Harish Seshadri

In this paper we consider the prescribed Gauduchon scalar curvature problem on almost Hermitian manifolds. By deducing the expression of the Gauduchon scalar curvature under the conformal variation, the problem is reduced to solve a…

Differential Geometry · Mathematics 2023-06-13 Yuxuan Li , Wubin Zhou , Xianchao Zhou

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…

Analysis of PDEs · Mathematics 2014-05-21 Rafael López-Soriano , David Ruiz

We give some estimates of type sup*inf for the prescribed scalar curvature equation in dimension 4 and 5, under some condtion on the prescribed curvature.

Analysis of PDEs · Mathematics 2014-01-03 Samy Skander Bahoura

In 1992, motivated by Riemann mapping theorem, Escobar considered a version of Yamabe problem on manifolds of dimension n greater than 2 with boundary. The problem consists in finding a conformal metric such that the scalar curvature is…

Differential Geometry · Mathematics 2010-04-09 Szu-yu Sophie Chen

We survey some results on scalar curvature and properties of solutions to the Einstein constraint equations. Topics include an extended discussion of asymptotically flat solutions to the constraint equations, including recent results on the…

Differential Geometry · Mathematics 2011-02-25 Justin Corvino , Daniel Pollack

This paper focuses on the problem of prescribing mean curvature on the unit ball. Assume that $f$, which is allowed to change sign, satisfies Morse index counting or certain kind of symmetry condition. By using a negative gradient flow…

Differential Geometry · Mathematics 2017-10-27 Hong Zhang

We overview main topics and ideas in spaces with their scalar curvatures bounded from below, and present a more detailed exposition of several known and some new geometric constraints on Riemannian spaces implied by the lower bounds on…

Differential Geometry · Mathematics 2021-07-09 Misha Gromov