Results 21 to 30 of about 2,635 (149)

Isometry theorem of gradient Shrinking Ricci solitons [PDF]

open access: yesJournal of Geometry and Physics, 2021
In this paper, we have proved that if a complete conformally flat gradient shrinking Ricci soliton has linear volume growth or the scalar curvature is finitely integrable and also the reciprocal of the potential function is subharmonic, then the manifold is isometric to the Euclidean sphere.
Shaikh, Absos Ali, Mondal, Chandan Kumar
openaire   +3 more sources

Gradient Weyl-Ricci Soliton

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2020
The classical notion of gradient Ricci soliton is extended here to the gradient Weyl-Ricci soliton. A Weyl structureofthebasemanifold M is lifted to its tangent bundle TM, by using the Sasaki metric. We give some necessary and sufficient conditions such that the Weyl structure on TM to be a gradient Weyl-Ricci soliton.
Cornelia-Livia BEJAN   +2 more
openaire   +2 more sources

The curvature of gradient Ricci solitons [PDF]

open access: yesMathematical Research Letters, 2011
We study integral and pointwise bounds on the curvature of gradient shrinking Ricci solitons. As applications we discuss gap and compactness results for gradient shrinkers.
Munteanu, Ovidiu, Wang, Mu-Tao
openaire   +2 more sources

On Bach-flat gradient shrinking Ricci solitons [PDF]

open access: yes, 2012
In this paper, we classify n-dimensional (n>3) complete Bach-flat gradient shrinking Ricci solitons. More precisely, we prove that any 4-dimensional Bach-flat gradient shrinking Ricci soliton is either Einstein, or locally conformally flat hence a finite
Cao, Huai-Dong, Chen, Qiang
core   +1 more source

On Gradient Ricci Solitons

open access: yesJournal of Geometric Analysis, 2011
to appear in J.
Munteanu, Ovidiu, Sesum, Natasa
openaire   +3 more sources

INEQUALITIES FOR GRADIENT EINSTEIN AND RICCI SOLITONS [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2020
This short note concerns with two inequalities in the geo\-me\-try of gradient Einstein solitons $(g, f, \lambda )$ on a smooth manifold $M$. These inequalities provide some relationships between the curvature of the Riemannian metric $g$ and the behavior of the scalar field $f$ through two quadratic equations satisfied by the scalar $\lambda $.
Blaga, Adara-Monica, Crasmareanu, Mircea
openaire   +1 more source

On gradient Ricci solitons with symmetry [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We study gradient Ricci solitons with maximal symmetry. First we show that there are no nontrivial homogeneous gradient Ricci solitons. Thus, the most symmetry one can expect is an isometric cohomogeneity one group action. Many examples of cohomogeneity one gradient solitons have been constructed.
Petersen, Peter, Wylie, William
openaire   +2 more sources

Geometric classifications of k-almost Ricci solitons admitting paracontact metrices

open access: yesOpen Mathematics, 2023
The prime objective of the approach is to give geometric classifications of kk-almost Ricci solitons associated with paracontact manifolds. Let M2n+1(φ,ξ,η,g){M}^{2n+1}\left(\varphi ,\xi ,\eta ,g) be a paracontact metric manifold, and if a KK-paracontact
Li Yanlin   +4 more
doaj   +1 more source

Locally conformally flat ancient Ricci flows [PDF]

open access: yes, 2015
We show that any locally conformally flat ancient solution to the Ricci flow must be rotationally symmetric. As a by-product, we prove that any locally conformally flat Ricci soliton is a gradient soliton in the shrinking and steady cases as well as in ...
Catino, Giovanni   +2 more
core   +1 more source

Rigidity of Complete Gradient Shrinkers with Pointwise Pinching Riemannian Curvature

open access: yesAdvances in Mathematical Physics, 2021
Let Mn,g,f be a complete gradient shrinking Ricci soliton of dimension n≥3. In this paper, we study the rigidity of Mn,g,f with pointwise pinching curvature and obtain some rigidity results.
Yawei Chu, Dehe Li, Jundong Zhou
doaj   +1 more source

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