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The goal of the current paper is to characterize $*$-$k$-Ricci-Yamabe soliton within the framework on Kenmotsu manifolds. Here, we have shown the nature of the soliton and find the scalar curvature when the manifold admitting…

Differential Geometry · Mathematics 2021-11-22 Santu Dey , Soumendu Roy

In this paper, we prove that any compact 2-sided smooth stable minimal hypersurface in gradient Ricci soliton $(M^{n},g,f)$ with scalar curvature $R\geq(n-1)\lambda$ must have vanished second fundamental form and vanished normal Ricci…

Differential Geometry · Mathematics 2025-04-10 Yukai Sun , Guangrui Zhu

We consider almost $\eta$-Ricci solitons in $(\varepsilon)$-para Sasakian manifolds satisfying certain curvature conditions. In the gradient case we give an estimation of the Ricci curvature tensor's norm and express the scalar curvature of…

Differential Geometry · Mathematics 2025-08-04 Adara M. Blaga , Selcen Yuksel Perktas

We prove that on Fano manifolds, the K\"ahler-Ricci flow produces a "most destabilising" degeneration, with respect to a new stability notion related to the H-functional. This answers questions of Chen-Sun-Wang and He. We give two…

Differential Geometry · Mathematics 2018-07-10 Ruadhaí Dervan , Gábor Székelyhidi

Let $(M,J_0)$ be a Fano manifold which admits a K\"ahler-Ricci soliton, we analyze the behavior of the K\"ahler-Ricci flow near this soliton as we deform the complex structure $J_0$. First, we will establish an inequality of Lojasiewicz's…

Differential Geometry · Mathematics 2021-07-28 Gang Tian , Liang Zhang , Xiaohua Zhu

We prove an algebraic version of the Hamilton-Tian Conjecture for all log Fano pairs. More precisely, we show that any log Fano pair admits a canonical two-step degeneration to a reduced uniformly Ding stable triple, which admits a…

Algebraic Geometry · Mathematics 2023-06-21 Harold Blum , Yuchen Liu , Chenyang Xu , Ziquan Zhuang

The aim of this paper is to study geometrical aspects of static spacetime admitting an almost gradient Ricci soliton. Among others, We first determine the conditions under which the base manifold of static spacetime possess an almost…

Differential Geometry · Mathematics 2025-10-21 Akhilesh Yadav , Tarun Saxena

We develop a new degree theory for 4-dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over $S^3$ with non-negative scalar…

Differential Geometry · Mathematics 2025-01-27 Richard H. Bamler , Eric Chen

We establish Carleman inequalities for the weighted laplacian associated to an expanding gradient Ricci soliton. As a consequence, a unique continuation at infinity is proved for asymptotically Ricci flat Ricci expanders. The obstruction at…

Differential Geometry · Mathematics 2015-07-09 Alix Deruelle

We study complete noncompact long time solutions $(M, g(t))$ to the K\"ahler-Ricci flow with uniformly bounded nonnegative holomorphic bisectional curvature. We will show that when the Ricci curvature is positive and uniformly pinched, i.e.…

Differential Geometry · Mathematics 2008-06-17 Albert Chau , Luen-Fai Tam

The author has proved that a crepant resolution Y of a Ricci-flat K\"{a}hler cone X admits a complete Ricci-flat K\"{a}hler metric asymptotic to the cone metric in every K\"{a}hler class in H^2_c(Y,\R). These manifolds are generalizations…

Differential Geometry · Mathematics 2011-01-21 Craig van Coevering

Some observations about the local and global generality of gradient Kahler Ricci solitons are made, including the existence of a canonically associated holomorphic volume form and vector field, the local generality of solutions with a…

Differential Geometry · Mathematics 2007-05-23 Robert L. Bryant

In this paper, we establish several sufficient and necessary conditions for the convergence of a K\"ahler-Ricci flow, on a K\"ahler manifold with positive first Chern class, to a K\"ahler-Einstein metric (or a shrinking K\"ahler-Ricci…

Differential Geometry · Mathematics 2010-11-09 Zhenlei Zhang

We prove a uniqueness result for asymptotically conical (AC) gradient shrinking solitons for the Laplacian flow of closed G_2-structures: If two gradient shrinking solitons to Laplacian flow are asymptotic to the same closed G_2-cone, then…

Differential Geometry · Mathematics 2022-10-17 Mark Haskins , Ilyas Khan , Alec Payne

For a shrinking Ricci soliton with Ricci curvature convergent to zero at infinity, it is proved that it must be asymptotically conical.

Differential Geometry · Mathematics 2014-12-16 Ovidiu Munteanu , Jiaping Wang

We introduce a novel curvature flow, the Heterotic-Ricci flow, as the two-loop renormalization group flow of the Heterotic string common sector and study its three-dimensional compact solitons. The Heterotic-Ricci flow is a coupled…

Differential Geometry · Mathematics 2024-04-02 Andrei Moroianu , Ángel J. Murcia , C. S. Shahbazi

In this paper we consider a perturbation of the Ricci solitons equation proposed in \cite{jpb1} and studied in \cite{CaMa} and we classify noncompact gradient shrinkers with bounded nonnegative sectional curvature.

Differential Geometry · Mathematics 2016-02-02 Giovanni Catino , Lorenzo Mazzieri , Samuele Mongodi

Let $D$ be a compact K\"ahler manifold with trivial canonical bundle and $\Gamma$ be a finite cyclical group of order $m$ acting on $\mathbb{C} \times D$ by biholomorphisms, where the action on the first factor is generated by rotation of…

Differential Geometry · Mathematics 2021-08-17 Johannes Schäfer

In this paper we show that a complete Schouten soliton whose Ricci tensor has at most two eigenvalues at each point is rigid. This allows the classification of both shrinking and expanding Bach-flat Schouten solitons for $n\geq$ 4. When…

Differential Geometry · Mathematics 2021-03-25 Valter Borges

Let N_0 = C^2/H be an isolated quotient singularity with H in U (2) a finite subgroup. We show that for any Q-Gorenstein smoothings of N_0 a nearby fiber admits ALE Ricci-flat Kahler metrics in any Kahler class. Moreover, we generalize…

Differential Geometry · Mathematics 2011-02-15 Ioana Suvaina
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