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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

We give some estimates of type sup*inf for equation of prescribed scalar curvature type in dimenion 3. As a consequence, we derive an uniqueness type result.

Analysis of PDEs · Mathematics 2011-03-02 Samy Skander Bahoura

We give a uniform estimate for solutions of prescribed scalar curvature type equation in dimension 4.

Analysis of PDEs · Mathematics 2022-12-01 Samy Skander Bahoura

In this paper, we establish the curvature estimates for a class of Hessian type equations. Some applications are also discussed.

Analysis of PDEs · Mathematics 2020-04-14 Jianchun Chu , Heming Jiao

We give some results on a priori estimates and on estimates of type sup+inf and sup*inf.

Analysis of PDEs · Mathematics 2018-12-13 Samy Skander Bahoura

We give a sup $\times$ inf inequality for an elliptic equation.

Analysis of PDEs · Mathematics 2015-09-08 Samy Skander Bahoura

We give some a priori estimates of type sup*inf for Yamabe and prescribed scalar curvature type equations on Riemannian manifolds of dimension >2. The product sup*inf is caracteristic of those equations, like the usual Harnack inequalities…

Analysis of PDEs · Mathematics 2007-05-23 Samy Skander Bahoura

We give Harnack inequalities for solutions of equations of type prescribed scalar curvature in dimensions n $\ge$ 4.

Analysis of PDEs · Mathematics 2026-03-25 Samy Skander Bahoura

On Riemannian manifolds of dimension 4, for prescribed scalar curvature equation, under lipschitzian condition on the prescribed curvature, we have an uniform estimate for the solutions of the equation if we control their minimas.

Analysis of PDEs · Mathematics 2007-05-23 Samy Skander Bahoura

We give an estimate of type sup $\times$ inf on Riemannian manifold of dimension 4 for a Yamabe type equation.

Analysis of PDEs · Mathematics 2023-03-02 Samy Skander Bahoura

The article contains a brief description on the study of conformal scalar curvature equations, and discusses selected topics and questions concerning the equations in open spaces.

Differential Geometry · Mathematics 2007-05-23 Man Chun Leung

We derive integral and sup-estimates for the curvature of stably marginally outer trapped surfaces in a sliced space-time. The estimates bound the shear of a marginally outer trapped surface in terms of the intrinsic and extrinsic curvature…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Lars Andersson , Jan Metzger

To have an uniform estimate for the solutions of the scalar curvature equation perturbed by a non linear term, we give some minimal condition on the scalar curvature.

Analysis of PDEs · Mathematics 2007-05-23 Samy Skander Bahoura

We have an idea on the influence of a nonlinear term (tending to 0) on the prescribed scalar curvature equation to have an uniform estimate.

Analysis of PDEs · Mathematics 2007-05-23 Samy Skander Bahoura

We give existence results for solutions of the prescribed scalar curvature equation on $S^3$, when the curvature function is a positive Morse function and satisfies an index-count condition.

Differential Geometry · Mathematics 2008-09-01 Matthias Schneider

We establish several inequalities for manifolds with positive scalar curvature and, more generally, for the scalar curvature bounded from below, in the spirit of the classical bound on the distances between conjugates points in surfaces…

Differential Geometry · Mathematics 2018-10-30 Misha Gromov

We develop estimates for the equation of scalar curvature of singular metrics with cone angle $\beta>1$, in a big and semi-positive cohomology class on a K\"ahler manifold. We further derive the Laplacian estimate for the scalar curvature…

Differential Geometry · Mathematics 2022-05-31 Kai Zheng

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

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 is to study the conformal scalar curvature equation on complete noncompact Riemannian manifold of nonpositive curvature. We derive some estimates and properties of supersolutions of the scalar curvature equation, and obtain some…

Differential Geometry · Mathematics 2007-05-23 Zhang Zonglao
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