Results 91 to 100 of about 48,546 (184)

Convergence of riemannian manifolds with integral bounds on curvature. II [PDF]

open access: yesAnnales scientifiques de l'École normale supérieure, 1992
The paper is a continuation of the author [Ann. Sci. Éc. Norm. Supér., IV. Sér. 25, 77-105 (1992; Zbl 0748.53025)], which is called Part I in the sequel. A convergence theorem with the same assumptions but with a stronger conclusion as in Part I is given. As an application an almost Einstein pinching theorem is obtained.
openaire   +2 more sources

Korpelevich Method for Solving Bilevel Variational Inequalities on Riemannian Manifolds

open access: yesAxioms
The bilevel variational inequality on Riemannian manifolds refers to a mathematical problem involving the interaction between two levels of optimization, where one level is constrained by the other level.
Jiagen Liao, Zhongping Wan
doaj   +1 more source

Einstein like -para Sasakian manifolds

open access: yesKuwait Journal of Science, 2013
Einstein like  -para Sasakian manifolds are introduced. For an  -para Sasakian manifold to be Einstein like, a necessary and sufficient condition in terms of its curvature tensor is obtained.
SADIK KELES   +3 more
doaj  

A New Family of Curvature Homogeneous Pseudo-Riemannian Manifolds

open access: yesRocky Mountain Journal of Mathematics, 2009
We construct a new family of curvature homogeneous pseudo-Riemannian manifolds modeled on $\mathbb{R}^{3k+2}$ for integers $k \geq 1$. In contrast to previously known examples, the signature may be chosen to be $(k+1+a, k+1+b)$ where $a,b \in \mathbb{N} \bigcup \{0\}$ and $a+b = k$.
openaire   +3 more sources

A note on extremal functions for sharp Sobolev inequalities

open access: yesElectronic Journal of Differential Equations, 2007
In this note we prove that any compact Riemannian manifold of dimension $ngeq 4$ which is non-conformal to the standard n-sphere and has positive Yamabe invariant admits infinitely many conformal metrics with nonconstant positive scalar curvature on
Marcos Montenegro, Ezequiel R. Barbosa
doaj  

k-Almost Newton-Conformal Ricci Solitons on Hypersurfaces Within Golden Riemannian Manifolds with Constant Golden Sectional Curvature

open access: yesAxioms
The current work establishes the geometrical bearing for hypersurfaces in a Golden Riemannian manifold with constant golden sectional curvature with respect to k-almost Newton-conformal Ricci solitons.
Amit Kumar Rai   +5 more
doaj   +1 more source

Curvature and characteristic classes of compact Riemannian manifolds [PDF]

open access: yesJournal of Differential Geometry, 1967
Cheung, Yuk-keung, Hsiung, Chuan-chih
openaire   +2 more sources

A decomposition analysis of Weyl's curvature tensor via Berwald’s first and second order derivatives in Finsler spaces

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences
This research paper explores the decomposition of Weyl's curvature tensor through the lens of Berwald’s first and second-order derivatives in Finsler spaces.
Adel Mohammed Ali Al-Qashbari   +2 more
doaj   +1 more source

The Lichnerowicz-Type Laplacians: Vanishing Theorems for Their Kernels and Estimate Theorems for Their Smallest Eigenvalues

open access: yesMathematics
In the present paper, we prove several vanishing theorems for the kernel of the Lichnerowicz-type Laplacian and provide estimates for its lowest eigenvalue on closed Riemannian manifolds.
Josef Mikeš   +2 more
doaj   +1 more source

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