Results 11 to 20 of about 436 (165)

Critical point equation on almost f-cosymplectic manifolds [PDF]

open access: yesArab Journal of Mathematical Sciences, 2023
Purpose – Besse first conjectured that the solution of the critical point equation (CPE) must be Einstein. The CPE conjecture on some other types of Riemannian manifolds, for instance, odd-dimensional Riemannian manifolds has considered by many geometers.
H. Aruna Kumara   +2 more
doaj   +1 more source

Pseudo-Riemannian weakly symmetric manifolds [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2011
Nine ...
Chen, Zhiqi, Wolf, Joseph A.
openaire   +3 more sources

On Almost Norden Statistical Manifolds

open access: yesEntropy, 2022
We consider a statistical connection ∇ on an almost complex manifold with (pseudo-) Riemannian metric, in particular the Norden metric. We investigate almost Norden (statistical) manifolds under the condition that the almost complex structure J is ...
Leila Samereh   +2 more
doaj   +1 more source

The χ-Hessian Quotient for Riemannian Metrics

open access: yesAxioms, 2021
Pseudo-Riemannian geometry and Hilbert–Schmidt norms are two important fields of research in applied mathematics. One of the main goals of this paper will be to find a link between these two research fields. In this respect, in the present paper, we will
Pişcoran Laurian-Ioan   +3 more
doaj   +1 more source

Pseudo-riemannian manifolds with commuting jacobi operators [PDF]

open access: yesRendiconti del Circolo Matematico di Palermo, 2006
We study the geometry of pseudo-Riemannian manifolds which are Jacobi--Tsankov, i.e. J(x)J(y)=J(y)J(x) for all tangent vectors x and y. We also study manifolds which are 2-step Jacobi nilpotent, i.e. J(x)J(y)=0 for all tangent vectors x and y.
Brozos-Vázquez, M., Gilkey, P.
openaire   +3 more sources

On Statistical and Semi-Weyl Manifolds Admitting Torsion

open access: yesMathematics, 2022
We introduce the concept of quasi-semi-Weyl structure, we provide a couple of ways for constructing quasi-statistical and quasi-semi-Weyl structures by means of a pseudo-Riemannian metric, an affine connection and a tensor field on a smooth manifold, and
Adara M. Blaga, Antonella Nannicini
doaj   +1 more source

Conformality and Pseudo-Riemannian Manifolds.

open access: yesMATHEMATICA SCANDINAVICA, 1971
Artykuł w: Annales Universitatis Mariae Curie-Skłodowska. Sectio A, Mathematica. Vol. 22/23/24 (1968/1969/1970), s. 113-123 ; streszcz. pol., ros. ; Artykuł w: Annales Universitatis Mariae Curie-Skłodowska. Sectio A, Mathematica. Vol. 22/23/24 (1968/1969/1970), s. 113-123 ; streszcz. pol., ros.
Ławrynowicz, Julian   +1 more
openaire   +3 more sources

Qualar curvatures of pseudo Riemannian manifolds and pseudo Riemannian submanifolds

open access: yesAIMS Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Directed Graph Embeddings in Pseudo-Riemannian Manifolds

open access: yesCoRR, 2021
Accepted at ICML ...
Aaron Sim   +4 more
openaire   +3 more sources

On curvature tensors of Norden and metallic pseudo-Riemannian manifolds

open access: yesComplex Manifolds, 2019
We study some properties of curvature tensors of Norden and, more generally, metallic pseudo-Riemannian manifolds. We introduce the notion of J-sectional and J-bisectional curvature of a metallic pseudo-Riemannian manifold (M, J, g) and study their ...
Blaga Adara M., Nannicini Antonella
doaj   +1 more source

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