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Related papers: Sasakian Manifold and *-Ricci Tensor

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The purpose of this note is to introduce a new method for proving the existence of Sasakian-Einstein metrics on certain simply connected odd dimensional manifolds. We then apply this method to prove the existence of new Sasakian-Einstein…

Differential Geometry · Mathematics 2007-05-23 Charles P. Boyer , Krzysztof Galicki

We review our study of Sasakian geometry as an agent for proving the existence of Einstein metrics on odd dimensional manifolds. Particular emphasis is given to the Sasakian structures occuring on links of isolated hypersurface…

Differential Geometry · Mathematics 2007-05-23 Charles P. Boyer , Krzysztof Galicki

In this paper, we aim to investigate the properties of an almost $*$-Ricci-Bourguignon soliton (almost $*-$R-B-S for short) on a Kenmotsu manifold (K-M). We start by proving that if a Kenmotsu manifold (K-M) obeys an almost $*-$R-B-S, then…

Motivated by the study of coupled K\"ahler-Einstein metrics by Hultgren and Witt Nystr\"om and coupled K\"ahler-Ricci solitons by Hultgren, we study in this paper coupled Sasaki-Einstein metrics and coupled Sasaki-Ricci solitons. We first…

Differential Geometry · Mathematics 2019-10-15 Akito Futaki , Yingying Zhang

The purpose of the present paper is to study semi-generalized recurrent, semi-generalized Ricci recurrent and conformal Ricci soliton on (LCS)n-manifold.

Differential Geometry · Mathematics 2019-01-23 Vishnuvardhana. S. V. , Venkatesha , S. K. Hui

Measure contraction properties are generalizations of the notion of Ricci curvature lower bounds in Riemannian geometry to more general metric measure spaces. In this paper, we give sufficient conditions for a Sasakian manifold equipped…

Differential Geometry · Mathematics 2014-11-11 Paul W. Y. Lee , Chengbo Li , Igor Zelenko

We survey on the geometry of the tangent bundle of a Riemannian manifold, endowed with the classical metric established by S. Sasaki 60 years ago. Following the results of Sasaki, we try to write and deduce them by different means.…

Differential Geometry · Mathematics 2019-09-05 Rui Albuquerque

In this paper, we show that the uniform L^4-bound of the transverse Ricci curvature along the Sasaki-Ricci flow on a compact quasi-regular transverse Fano Sasakian (2n+1)-manifold M. When M is dimension up to seven and the space of leaves…

Differential Geometry · Mathematics 2022-10-25 Der-Chen Chang , Shu-Cheng Chang , Yingbo Han , Chien Lin , Chin-Tung Wu

This is an expository article. Among other topics, we discuss the existence of Kahler-Ricci soliton metrics on toric Fano manifolds, and Kahler-Einstein metrics on deformations of the Mukai-Umemura 3-fold

Differential Geometry · Mathematics 2008-04-14 S. K. Donaldson

This is an expository paper describing the geometry of certain Sasakian-Einstein manifolds. Such manifolds have recently become of interest due to Maldacena's AdS/CFT conjecture. They describe near-horizon geometries of branes at conical…

High Energy Physics - Theory · Physics 2007-05-23 Charles P. Boyer , Krzysztof Galicki

Recent renewed interest in Sasakian manifolds is due mainly to the fact that they can provide examples of generalized Einstein manifolds, manifolds which are of great interest in mathematical models of various aspects of physical phenomena.…

Differential Geometry · Mathematics 2016-05-16 Robert Wolak

Suppose $M$ is a manifold with boundary. Choose a point $o\in\partial M$. We investigate the prescribed Ricci curvature equation $\Ric(G)=T$ in a neighborhood of $o$ under natural boundary conditions. The unknown $G$ here is a Riemannian…

Differential Geometry · Mathematics 2014-10-29 Artem Pulemotov

In this research article, we establish the geometrical bearing on Riemannian submersions in terms of $\eta$-Ricci-Yamabe Soliton with the potential field and giving the classification of any fiber of Riemannian submersion is an…

Differential Geometry · Mathematics 2020-04-30 Mohd. Danish Siddiqi , Mehmet Akif Akyol

Catino, Mastrolia, Monticelli, and Rigoli have launched an ambitious program to study known geometric solitons from a unified perspective, which they term Einstein-type manifolds. This framework allows one to treat Ricci solitons, Yamabe…

Differential Geometry · Mathematics 2026-01-21 Shun Maeta

We present Chen-Ricci inequality and improved Chen-Ricci inequality for curvature like tensors. Applying our improved Chen-Ricci inequality we study Lagrangian and Kaehlerian slant submanifolds of complex space forms and C-totally real…

Differential Geometry · Mathematics 2011-04-19 Mukut Mani Tripathi

The object of the present paper is to study some properties of Kenmotsu manifold whose metric is conformal $\eta$-Einstein soliton. We have studied some certain properties of Kenmotsu manifold admitting conformal $\eta$-Einstein soliton. We…

Differential Geometry · Mathematics 2021-06-09 Soumendu Roy , Santu Dey , Arindam Bhattacharyya

In this paper we investigate the possibility to obtain locally new Sasaki-Einstein metrics on the space $T^{1,1}$ considering a deformation of the standard metric tensor field. We show that from the geometric point of view this deformation…

Mathematical Physics · Physics 2020-06-11 Vladimir Slesar , Mihai Visinescu , Gabriel-Eduard Vîlcu

Curvature properties of a metric connection with totally skew-symmetric torsion are investigated. It is shown that if either the 3-form $T$ is harmonic, $dT=\delta T=0$ or the curvature of the torsion connection $R\in S^2\Lambda^2$ then the…

Differential Geometry · Mathematics 2024-10-08 Stefan Ivanov , Nikola Stanchev

We find a new class of invariant metrics existing on the tangent bundle of any given almost-Hermitian manifold. We focus here on the case of Riemannian surfaces, which yield new examples of K\"ahlerian Ricci-flat manifolds in four real…

Differential Geometry · Mathematics 2021-09-06 Rui Albuquerque

A. Derdzinki [D] gave examples of Riemannian metrics with harmonic curvature and non parallel Ricci tensor on some compact manifolds $(M,g]$ . We examine their existence as well as their number wich naturally depends on the geometry of the…

Differential Geometry · Mathematics 2007-05-23 A. Raouf Chouikha
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