Results 21 to 30 of about 79,734 (334)

Uniform stability of twisted constant scalar curvature K\"ahler metrics [PDF]

open access: yes, 2014
We introduce a norm on the space of test configurations, which we call the minimum norm. We conjecture that uniform K-stability with respect to this norm is equivalent to the existence of a constant scalar curvature K\"ahler metric.
R. Dervan
semanticscholar   +3 more sources

Liouville theorem on Ricci shrinkers with constant scalar curvature and its application [PDF]

open access: yesJournal für die Reine und Angewandte Mathematik, 2022
In this paper we consider harmonic functions on gradient shrinking Ricci solitons with constant scalar curvature. A Liouville theorem is proved without using gradient estimate: any bounded harmonic function is constant on gradient shrinking Ricci ...
Weixiong Mai, Jianyu Ou
semanticscholar   +1 more source

K-stability of constant scalar curvature Kähler manifolds

open access: yesAdvances in Mathematics, 2009
We show that a polarised manifold with a constant scalar curvature Kähler metric and discrete automorphisms is K-stable. This refines the K-semistability proved by S. K. Donaldson.
Stoppa, J., Stoppa, Jacopo
openaire   +6 more sources

Conformal deformations of conic metrics to constant scalar curvature [PDF]

open access: yes, 2021
We consider conformal deformations within a class of incomplete Riemannian metrics which generalize conic orbifold singularities by allowing both warping and any compact manifold (not just quotients of the sphere) to be the ``link'' of the singular set ...
Thalia D. Jeffres, J. Rowlett
semanticscholar   +1 more source

SCALAR CURVATURE OF HYPERSURFACES WITH CONSTANT MEAN CURVATURE IN A SPHERE [PDF]

open access: yesGlasgow Mathematical Journal, 2009
AbstractLet M be an n-dimensional closed hypersurface with constant mean curvature H satisfying |H| ≤ ϵ(n) in a unit sphere Sn+1, n ≤ 7, and S the square of the length of the second fundamental form of M. There exists a constant δ(n, H) > 0, which depends only on n and H, such that if S0 ≤ S ≤ S0 + δ(n, H), then S ≡ S0 and M is isometric to a ...
Cheng, Qing-Ming   +2 more
openaire   +3 more sources

On hypersurfaces of Lorentzian standard 4-space forms satisfying a biconservativity condition [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
In this manuscript, we consider an extended version of biconservativity condition (namely, ${\textrm C}$-biconservativity) on the Riemannian hypersurfaces of Lorentzian standard 4-space forms.
Firooz Pashaie
doaj   +1 more source

Metrics of constant negative scalar-Weyl curvature [PDF]

open access: yes, 2023
Extending Aubin's construction of metrics with constant negative scalar curvature, we prove that every n-dimensional closed manifold admits a Riemannian metric with constant negative scalarWeyl curvature, that is R + t|W|, t is an element of R.
Catino, Giovanni
core   +1 more source

Lectures on Stability and Constant Scalar Curvature [PDF]

open access: yesCurrent Developments in Mathematics, 2007
An introduction is provided to some current research trends in stability in geometric invariant theory and the problem of Kaehler metrics of constant scalar curvature. Besides classical notions such as Chow-Mumford stability, the emphasis is on several new stability conditions, such as K-stability, Donaldson's infinite-dimensional GIT, and conditions ...
Phong, D.H., Sturm, Jacob
openaire   +3 more sources

Stable Hypersurfaces with Constant Scalar Curvature [PDF]

open access: yesMathematische Zeitschrift, 1993
It is well known that hypersurfaces with constant mean curvature in Riemannian spaces are solutions to the variational problem of minimizing area for volume-preserving variations. Less known is the fact that hypersurfaces with constant scalar curvature in Riemannian spaces of constant sectional curvature are also solutions to a variational problem ...
Carmo, M. do, Alencar, H., Colares, A.G.
openaire   +2 more sources

Metrics of Eguchi–Hanson types with the negative constant scalar curvature [PDF]

open access: yes, 2020
We construct two types of Eguchi-Hanson metrics with the negative constant scalar curvature. The type I metrics are Kahler. The type II metrics are ALH whose total energy can be negative.
Junwen Chen, Xiao Zhang
semanticscholar   +1 more source

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