English
Related papers

Related papers: K\"ahler-Ricci flow for deformed complex structure…

200 papers

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 build connections between K\"ahler-Ricci shrinkers, i.e., complete (possibly non-compact) shrinking gradient K\"ahler-Ricci solitons, and algebraic geometry. In particular, we (1). prove that a K\"ahler-Ricci shrinker is…

Differential Geometry · Mathematics 2025-03-11 Song Sun , Junsheng Zhang

We establish a lower bound for the Donaldson-Futaki invariant of optimal degenerations produced by the K\"ahler-Ricci flow in terms of the greatest Ricci lower bound on arbitrary Fano manifolds. As an application, we can generalize the…

Differential Geometry · Mathematics 2020-01-20 Ryosuke Takahashi

In this paper we survey the recent developments of the Ricci flows on complete noncompact K\"{a}hler manifolds and their applications in geometry.

Differential Geometry · Mathematics 2007-05-23 Xi-Ping Zhu

Under broad hypotheses we derive a scalar reduction of the generalized K\"ahler-Ricci soliton system. We realize solutions as critical points of a functional analogous to the classical Aubin energy defined on the orbit of a natural…

Differential Geometry · Mathematics 2021-09-22 Vestislav Apostolov , Jeffrey Streets , Yury Ustinovskiy

We generalize K\"ahler-Ricci solitons to the almost-K\"ahler setting as the zeros of Inoue's moment map \cite{MR4017922}, and show that their existence is an obstruction to the existence of first-Chern-Einstein almost-K\"ahler metrics on…

Differential Geometry · Mathematics 2024-02-07 Michael Albanese , Giuseppe Barbaro , Mehdi Lejmi

In this paper, we study the global K\"ahler-Ricci flow on a complete non-compact K\"ahler manifold. We prove the following result. Assume that $(M,g_0)$ is a complete non-compact K\"ahler manifold such that there is a potential function $f$…

Differential Geometry · Mathematics 2015-09-29 Li Ma

We study the Kahler-Ricci flow on Fano manifolds. We show that if the curvature is bounded along the flow and if the manifold is K-polystable and asymptotically Chow semistable, then the flow converges exponentially fast to a…

Differential Geometry · Mathematics 2010-04-27 Valentino Tosatti

We establish the existence of the K"ahler-Ricci flow on projective varieties with log canonical singularities. This generalizes some of the existence results of Song-Tian \cite{ST3} in case of projective varieties with klt singularities. We…

Differential Geometry · Mathematics 2022-07-14 Albert Chau , Huabin Ge , Ka-Fai Li , Liangming Shen

On a polarized manifold $(X,L)$, the Bergman iteration $\phi_k^{(m)}$ is defined as a sequence of Bergman metrics on $L$ with two integer parameters $k, m$. We study the relation between the K\"ahler-Ricci flow $\phi_t$ at any time $t \geq…

Differential Geometry · Mathematics 2019-03-14 Ryosuke Takahashi

We consider canonical metrics on Fano manifolds. First we introduce a norm-type functional on Fano manifolds, which has Kahler-Einstein or Kahler-Ricci soliton as its critical point and the Kahler-Ricci flow can be viewed as its (reduced)…

Differential Geometry · Mathematics 2016-06-07 Weiyong He

In this paper we will give a simple proof of a modification of a result on pseudolocality for the Ricci flow by P.Lu without using the pseudolocality theorem 10.1 of Perelman [P1]. We also obtain an extension of a result of Hamilton on the…

Differential Geometry · Mathematics 2010-10-07 Shu-Yu Hsu

We will consider a {\it $\tau$-flow}, given by the equation $\frac{d}{dt}g_{ij} = -2R_{ij} + \frac{1}{\tau}g_{ij}$ on a closed manifold $M$, for all times $t\in [0,\infty)$. We will prove that if the curvature operator and the diameter of…

Differential Geometry · Mathematics 2007-05-23 Natasa Sesum

We localize the entropy functionals of G. Perelman and generalize his no-local-collapsing theorem and pseudo-locality theorem. Our generalization is technically inspired by further development of Li-Yau estimates along the Ricci flow. It…

Differential Geometry · Mathematics 2020-10-21 Bing Wang

In this paper, we derive the uniform L^{4}-bound of the transverse conic Ricci curvature along the conic Sasaki-Ricci flow on a compact transverse log Fano Sasakian manifold M of dimension five and the space of leaves of the characteristic…

Differential Geometry · Mathematics 2024-08-16 Shu-Cheng Chang , Fengjiang Li , Chien Lin , Chin-Tung Wu

We introduce a flow of Riemannian metrics over compact manifolds with formal limit at infinite time a shrinking Ricci soliton. We call this flow the Soliton-Ricci flow. It correspond to a Perelman's modified backward Ricci type flow with…

Differential Geometry · Mathematics 2012-03-19 Nefton Pali

We show that a 1-parameter family Ricci flow ancient solutions arises from the natural collapsings of the twistor space of positive quaternion K\"ahler manifolds. We use these ancient solutions to show that a positive quaternion K\"ahler…

Differential Geometry · Mathematics 2008-10-14 Ryoichi Kobayashi

We consider the K\"ahler-Ricci flow on certain Calabi-Yau fibration, which is a Calabi-Yau fibration with one dimensional base or a product of two Calabi-Yau fibrations with one dimensional bases. Assume the K\"ahler-Ricci flow on total…

Differential Geometry · Mathematics 2018-04-24 Yashan Zhang

In this paper, we prove the characterization of the $(K, \infty)$-super Perelman Ricci flows by various functional inequalities and gradient estimate for the heat semigroup generated by the Witten Laplacian on manifolds equipped with time…

Differential Geometry · Mathematics 2018-02-28 Songzi Li , Xiang-Dong Li

We produce solutions to the K\"ahler-Ricci flow emerging from complete initial metrics $g_0$ which are $C^0$ Hermitian limits of K\"ahler metrics. Of particular interest is when $g_0$ is K\"ahler with unbounded curvature. We provide such…

Differential Geometry · Mathematics 2014-04-01 Albert Chau , Ka-Fai Li , Luen-Fai Tam
‹ Prev 1 4 5 6 7 8 10 Next ›