Results 1 to 10 of about 14,636 (107)

Algebraic Schouten solitons of Lorentzian Lie groups with Yano connections

open access: yesCommunications in Analysis and Mechanics, 2023
In this paper, we discuss the beingness conditions for algebraic Schouten solitons associated with Yano connections in the background of three-dimensional Lorentzian Lie groups.
Jinli Yang, Jiajing Miao
doaj   +2 more sources

On the Geometry of Kobayashi–Nomizu Type and Yano Type Connections on the Tangent Bundle with Sasaki Metric

open access: yesMathematics, 2023
In this paper, we address the study of the Kobayashi–Nomizu type and the Yano type connections on the tangent bundle TM equipped with the Sasaki metric. Then, we determine the curvature tensors of these connections.
Esmaeil Peyghan   +2 more
doaj   +2 more sources

Classification of Lorentzian Lie Groups Based on Codazzi Tensors Associated with Yano Connections

open access: yesSymmetry, 2022
In this paper, we derive the expressions of Codazzi tensors associated with Yano connections in seven Lorentzian Lie groups. Furthermore, we complete the classification of three-dimensional Lorentzian Lie groups in which Ricci tensors associated with Yano connections are Codazzi tensors.
Jiajing Miao, Jinli Yang, Jianyun Guan
openaire   +1 more source

TCFHs and hidden symmetries of type IIA AdS backgrounds

open access: yesJournal of High Energy Physics, 2023
We present the twisted covariant form hierarchies (TCFHs) of warped (massive) IIA AdS backgrounds. As a consequence we demonstrate that all Killing spinor form bilinears satisfy a generalisation of the conformal Killing-Yano equation with respect to the ...
G. Papadopoulos, J. Phillips
doaj   +1 more source

Affine transformations of the tangent bundle with a complete lift connection over a manifold with a linear connection of special type

open access: yesДифференциальная геометрия многообразий фигур, 2021
The theory of tangent bundles over a differentiable manifold M be­longs to the geometry and topology of manifolds and is an intensively developing area of the theory of fiber spaces. The foundations of the theo­ry of fibered spaces were laid in the works
A. Ya. Sultanov   +2 more
doaj   +1 more source

The TCFHs of D = 11 AdS backgrounds and hidden symmetries

open access: yesJournal of High Energy Physics, 2023
We present the TCFHs of all AdS backgrounds of 11-dimensional supergravity and explore some of the properties of the associated connections. Therefore, we demonstrate that all Killing spinor bilinears satisfy a generalisation of the conformal Killing ...
G. Papadopoulos, E. Pérez-Bolaños
doaj   +1 more source

The Cartan connection: sketches for a portrait of Kentaro Yano [PDF]

open access: yesCreative Mathematics and Informatics, 2021
We are describing the historical context in which Kentaro Yano prepared his doctoral dissertation under Elie Cartan’s coordination, and how this ´ work was published in Romania, with Analele S¸ tiint¸ifice ale Universit˘at¸ii “Al. I. Cuza”. We describe some of the many encounters made possible by Elie Cartan’s extraordinary creative contributions ...
openaire   +1 more source

TCFHs, IIB warped AdS backgrounds and hidden symmetries

open access: yesJournal of High Energy Physics, 2023
We present the twisted covariant form hierarchies (TCFHs) on the internal spaces of all type IIB warped AdS backgrounds. As a result we demonstrate that the form bilinears on the internal spaces satisfy a generalisation of the conformal Killing-Yano ...
L. Grimanellis, G. Papadopoulos
doaj   +1 more source

Affine Generalized Ricci Solitons of Three-Dimensional Lorentzian Lie Groups Associated to Yano Connection

open access: yesJournal of Nonlinear Mathematical Physics, 2023
AbstractIn the present paper, we calculate Yano connection, its curvature and Lie derivative of metric associated to it on three-dimensional Lorentzian Lie groups with some product structure. We introduce affine generalized Ricci solitons associated to the Yano connection and we classify left-invariant affine generalized Ricci solitons associated to ...
openaire   +2 more sources

Index of quasi-conformally symmetric semi-Riemannian manifolds [PDF]

open access: yes, 2012
We find the index of $\widetilde{\nabla}$-quasi-conformally symmetric and $\widetilde{\nabla}$-concircularly symmetric semi-Riemannian manifolds, where $\widetilde{\nabla}$ is metric ...
Gupta, Punam   +2 more
core   +3 more sources

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