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Let $(M, g, f)$ be a $4$-dimensional complete noncompact gradient shrinking Ricci soliton with the equation $Ric+\nabla^2f=\lambda g$, where $\lambda$ is a positive real number. We prove that if $M$ has constant scalar curvature…

Differential Geometry · Mathematics 2021-06-24 Xu Cheng , Detang Zhou

In this paper, it is shown that (with no additional assumptions) on a compact 7-dimensional manifold which admits a $G_2$-structure soliton solutions to the Laplacian flow of R. Bryant can only be shrinking or steady. We also show that the…

Differential Geometry · Mathematics 2015-06-03 Christopher Lin

For any $n\geq 4$, we construct an $(n-2)$-parameter family of steady gradient Ricci solitons with non-negative curvature operator and prescribed by the eigenvalues of Ricci tensor at a critical point of the soliton potential. Among them…

Differential Geometry · Mathematics 2026-01-30 Pak-Yeung Chan , Yi Lai , Man-Chun Lee

In this paper, we prove a volume growth estimate for steady gradient Ricci solitons with bounded Nash entropy. We show that such a steady gradient Ricci soliton has volume growth rate no smaller than $r^{\frac{n+1}{2}}.$ This result not…

Differential Geometry · Mathematics 2021-10-13 Richard H. Bamler , Pak-Yeung Chan , Zilu Ma , Yongjia Zhang

We establish a symmetry principle for asymptotically cylindrical steady gradient Ricci solitons (GRSs) and asymptotically conical expanding GRSs with homogeneous links. Using this, we show that the Bryant steady soliton is the unique…

Differential Geometry · Mathematics 2026-04-09 Michael B. Law

The main purpose of this paper is to show that a normalized non-steady gradient Ricci soliton (M,g,f,{\lambda}) of dimension n is trivial if and only if its scalar curvature S satisfies the equality S={\lambda}(f+(n/2)).

Differential Geometry · Mathematics 2020-02-13 Mohammed Guediri

In this very short note we prove a lower bound for the scalar curvature of certain steady gradient Ricci solitons.

Differential Geometry · Mathematics 2011-02-23 Bennett Chow , Peng Lu , Bo Yang

We show that every complete nontrivial gradient Yamabe soliton admits a special global warped product structure with a one-dimensional base. Based on this, we prove a general classification theorem for complete nontrivial locally…

Differential Geometry · Mathematics 2024-03-12 Huai-Dong Cao , Xiaofeng Sun , Yingying Zhang

By extending Koiso's examples to the non-compact case, we construct complete gradient Kahler-Ricci solitons of various types on certain holomorphic line bundles over compact Kahler-Einstein manifolds. Moreover, a uniformization result on…

Differential Geometry · Mathematics 2008-02-05 Bo Yang

The only known example of collapsed three-dimensional complete gradient steady Ricci solitons so far is the 3D cigar soliton $N^2\times \mathbb{R}$, the product of Hamilton's cigar soliton $N^2$ and the real line $\mathbb{R}$ with the…

Differential Geometry · Mathematics 2024-03-12 Huai-Dong Cao , Chenxu He

In this paper we have investigated some aspects of gradient $\rho$-Einstein Ricci soliton in a complete Riemannian manifold. First, we have proved that the compact gradient $\rho$-Einstein soliton is isometric to the Euclidean sphere by…

Differential Geometry · Mathematics 2020-03-12 Absos Ali Shaikh , Chandan Kumar Mondal , Prosenjit Mandal

We first investigate the asymptotics of conical expanding gradient Ricci solitons by proving sharp decay rates to the asymptotic cone both in the generic and the asymptotically Ricci flat case. We then establish a compactness theorem…

Differential Geometry · Mathematics 2014-11-11 Alix Deruelle

We show that a four-dimensional complete gradient shrinking Ricci soliton with positive isotropic curvature is either a quotient of S^4 or a quotient of S^3 cross R. This gives a clean classification result removing the earlier additional…

Differential Geometry · Mathematics 2016-03-18 Xiaolong Li , Lei Ni , Kui Wang

We find a family of 3d steady gradient Ricci solitons that are flying wings. This verifies a conjecture by Hamilton. For a 3d flying wing, we show that the scalar curvature does not vanish at infinity. The 3d flying wings are collapsed. For…

Differential Geometry · Mathematics 2020-12-01 Yi Lai

In this paper, we study gradient Ricci expanding solitons $(X,g)$ satisfying $$ Rc=cg+D^2f, $$ where $Rc$ is the Ricci curvature, $c<0$ is a constant, and $D^2f$ is the Hessian of the potential function $f$ on $X$. We show that for a…

Differential Geometry · Mathematics 2007-05-23 Li Ma , Dezhong Chen

The aim of this paper is characterize a class of contact metric manifolds admitting $\ast$-conformal Ricci soliton. It is shown that if a $(2n + 1)$-dimensional $N(k)$-contact metric manifold $M$ admits $\ast$-conformal Ricci soliton or…

Differential Geometry · Mathematics 2020-05-06 Dibakar Dey , Pradip Majhi

In this article we study the limiting behavior of the K\"ahler Ricci flow on complete non-compact K\"ahler manifolds. We provide sufficient conditions under which a complete non-compact gradient K\"ahler-Ricci soliton is biholomorphic to…

Differential Geometry · Mathematics 2007-05-23 Albert Chau , Luen-Fai Tam

We show that, up to the flow of the soliton vector field, there exists a unique complete steady gradient K\"ahler-Ricci soliton in every K\"ahler class of an equivariant crepant resolution of a Calabi-Yau cone converging at a polynomial…

Differential Geometry · Mathematics 2020-06-08 Ronan J. Conlon , Alix Deruelle

We show that for an $n$ dimensional complete non Ricci flat gradient steady Ricci soliton with potential function $f$ bounded above by a constant and curvature tensor $Rm$ satisfying $\overline{\lim}_{r\to \infty} r|Rm|<\frac{1}{5}$, then…

Differential Geometry · Mathematics 2019-08-29 Pak-Yeung Chan

We introduce a new curvature-pinching condition, which is weaker than the positive sectional curvature or PIC1, and then we prove several rigidity results for the rotationally symmetric solutions of steady Ricci solitons, i.e., the Bryant…

Differential Geometry · Mathematics 2023-02-23 Ziyi Zhao , Xiaohua Zhu