Results 61 to 70 of about 7,459 (148)

On Gauss-Bonnet Curvatures

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
The $(2k)$-th Gauss-Bonnet curvature is a generalization to higher dimensions of the $(2k)$-dimensional Gauss-Bonnet integrand, it coincides with the usual scalar curvature for $k = 1$.
Mohammed Larbi Labbi
doaj  

Volume comparison and the sigma_k-Yamabe problem

open access: yes, 2002
In this paper we study the problem of finding a conformal metric with the property that the k-th elementary symmetric polynomial of the eigenvalues of its Weyl-Schouten tensor is constant. A new conformal invariant involving maximal volumes is defined, and this invariant is then used in several cases to prove existence of a solution, and compactness of
Gursky, Matthew J., Viaclovsky, Jeff A.
openaire   +3 more sources

Successful treatment of ejaculation pain with silodosin in patient with Zinner syndrome: a case report. [PDF]

open access: yesTransl Androl Urol, 2023
Uetani M   +9 more
europepmc   +1 more source

Energy Quantization for Yamabe's problem in Conformal Dimension

open access: yesElectronic Journal of Differential Equations, 2006
T. Riviere proved an energy quantization for Yang-Mills fields defined on n-dimensional Riemannian manifolds, when $n$ is larger than the critical dimension 4. More precisely, he proved that the defect measure of a weakly converging sequence of Yang-Mills fields is quantized, provided the $W^{2,1}$ norm of their curvature is uniformly bounded.
openaire   +4 more sources

The Yamabe problem with singularities

open access: yes, 2008
Let $(M,g)$ be a compact Riemannian manifold of dimension $n\geq 3$. Under some assumptions, we prove that there exists a positive function $ $ solution of the following Yamabe type equation + h = \tilde h ^{\frac{n+2}{n-2}} where $h\in L^p(M)$, $p>n/2$ and $\tilde h\in \mathbb R$. We give the regularity of $ $ with respect to the value of $
openaire   +2 more sources

The Yamabe problem on CR manifolds

open access: yesJournal of Differential Geometry, 1987
The Yamabe problem is to find a metric of constant scalar curvature in a given conformal class of Riemannian metrics. This paper studies the analogous problem for strictly pseudoconvex CR-manifolds. The notion of scalar curvature used here is due to S. Webster. After introducing the relevant variational problem for CR manifolds an invariant \(\lambda\)
Jerison, David, Lee, John M.
openaire   +3 more sources

Verification of Coronary Computed Tomography-Derived Fractional Flow Reserve Measurement Site for Detection of Significant Coronary Artery Disease. [PDF]

open access: yesCirc Rep, 2021
Kawasaki T   +12 more
europepmc   +1 more source

Recent progress on the Yamabe problem

open access: yes, 2010
We give a survey of various compactness and non-compactness results for the Yamabe equation. We also discuss a conjecture of Hamilton concerning the asymptotic behavior of the parabolic Yamabe flow.
Brendle, S., Marques, F. C.
openaire   +2 more sources

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