Results 31 to 40 of about 693,970 (340)

On Gromov’s scalar curvature conjecture [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We prove the Gromov conjecture on the macroscopic dimension of the universal covering of a closed spin manifold with a positive scalar curvature under the following assumptions on the fundamental group.0.10.1.Theorem.Suppose that a discrete groupπ\pihas the following properties:11. The Strong Novikov Conjecture holds forπ\pi.22.
Bolotov, Dmitry, Dranishnikov, Alexander
openaire   +2 more sources

Geodesic mappings of quasi-Einstein spaces with a constant scalar curvature

open access: yes, 2020
V. A. Kiosak, G. V. Kovalova. Geodesic mappings of quasi-Einstein spaces with a constant scalar curvature, Mat. Stud. 53 (2020), 212–217. In this paper we study a special type of pseudo-Riemannian spaces – quasi-Einstein spaces of constant scalar ...
V. Kiosak, G. Kovalova
semanticscholar   +1 more source

TOTAL SCALAR CURVATURE AND HARMONIC CURVATURE

open access: yesTaiwanese Journal of Mathematics, 2014
On a compact n-dimensional manifold, it has been conjectured that a critical point metric of the total scalar curvature, restricted to the space of metrics with constant scalar curvature of unit volume, will be Einstein. This conjecture was proposed in 1984 by Besse, but has yet to be proved.
Yun, Gabjin   +2 more
openaire   +3 more sources

Deformation of the Weighted Scalar Curvature

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2023
Inspired by the work of Fischer-Marsden [Duke Math. J. 42 (1975), 519-547], we study in this paper the deformation of the weighted scalar curvature. By studying the kernel of the formal $L_\phi^2$-adjoint for the linearization of the weighted scalar curvature, we prove several geometric results.
Ho, Pak Tung, Shin, Jinwoo
openaire   +2 more sources

Constrained deformations of positive scalar curvature metrics [PDF]

open access: yesJournal of differential geometry, 2019
We present a series of results concerning the interplay between the scalar curvature of a manifold and the mean curvature of its boundary. In particular, we give a complete topological characterization of those compact 3-manifolds that support Riemannian
A. Carlotto, Chao Li
semanticscholar   +1 more source

Kähler metrics with constant weighted scalar curvature and weighted K‐stability [PDF]

open access: yesProceedings of the London Mathematical Society, 2018
We introduce a notion of a Kähler metric with constant weighted scalar curvature on a compact Kähler manifold X , depending on a fixed real torus T in the reduced group of automorphisms of X , and two smooth (weight) functions v>0 and w , defined on the ...
Abdellah Lahdili
semanticscholar   +1 more source

Renormalizable Gravitational Action That Reduces to General Relativity on the Mass-Shell

open access: yesGalaxies, 2018
We derive the equation that relates gravity to quantum mechanics: R|mass-shell=8πGc4LSM, where R is the scalar curvature, G is the gravitational constant, c is the speed of light and LSM is the Standard Model Lagrangian, or its future replacement ...
Peter D. Morley
doaj   +1 more source

Geometric Inequalities for a Submanifold Equipped with Distributions

open access: yesMathematics, 2022
The article introduces invariants of a Riemannian manifold related to the mutual curvature of several pairwise orthogonal subspaces of a tangent bundle. In the case of one-dimensional subspaces, this curvature is equal to half the scalar curvature of the
Vladimir Rovenski
doaj   +1 more source

Interior curvature estimates for hypersurfaces of prescribing scalar curvature in dimension three [PDF]

open access: yesAmerican Journal of Mathematics, 2019
:We prove a priori interior curvature estimates for hypersurfaces of prescribing scalar curvature equations in $\mathbb{R}^{3}$. The method is motivated by the integral method of Warren and Yuan.
Guohuan Qiu
semanticscholar   +1 more source

Scalar curvature, inequality and submanifold [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Using an inequality relation between scalar curvature and length of second fundamental form, we may conclude that a submanifold must have nonnegative (or positive) sectional curvatures. An application to compact submanifolds in obtained.
Chen, Bang-Yen, Okumura, Masafumi
openaire   +2 more sources

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