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We argue that the complete Klebanov-Witten flow solution must be described by a Calabi-Yau metric on the conifold, interpolating between the orbifold at infinity and the cone over T^(1,1) in the interior. We show that the complete flow…

High Energy Physics - Theory · Physics 2009-11-10 Nick Halmagyi , Krzysztof Pilch , Christian Romelsberger , Nicholas P. Warner

We study a flow of $G_2$ structures which induce the same Riemannian metric which is the negative gradient flow of an energy functional. We prove Shi-type estimates for the torsion tensor along the flow. We show that at a finite-time…

Differential Geometry · Mathematics 2021-02-15 Shubham Dwivedi , Panagiotis Gianniotis , Spiro Karigiannis

In this note we obtain local derivative estimates of Shi-type for the heat equation coupled to the Ricci flow. As applications, in part combining with Kuang's work, we extend some results of Zhang and Bamler-Zhang including distance…

Differential Geometry · Mathematics 2021-03-02 Hong Huang

We study the collapsing behavior of the Kaehler-Ricci flow on a compact Kaehler manifold X admitting a holomorphic submersion X -> S coming from its canonical class, where S is a Kaehler manifold with dim S < dim X. We show that the flow…

Differential Geometry · Mathematics 2013-08-26 Frederick Tsz-Ho Fong , Zhou Zhang

We consider the Cahn-Hilliard equation in one space dimension with scaling a small parameter \epsilon and a non-convex potential W. In the limit \espilon \to 0, under the assumption that the initial data are energetically well-prepared, we…

Analysis of PDEs · Mathematics 2012-02-09 Giovanni Bellettini , Lorenzo Bertini , Mauro Mariani , Matteo Novaga

A short proof of the convergence of the Kahler-Ricci flow on Fano manifolds admitting a Kahler-Einstein metric or a Kahler-Ricci soliton is given, using a variety of recent techniques

Differential Geometry · Mathematics 2020-01-20 Bin Guo , Duong H. Phong , Jacob Sturm

S. K. Donaldson asked whether the lower bound of the Calabi functional is achieved by a sequence the normalized Donaldson-Futaki invariants. We answer the question for the Ricci curvature formalism, in place of the scalar curvature. The…

Differential Geometry · Mathematics 2020-01-22 Tomoyuki Hisamoto

We introduce mu-scalar curvature for a K"ahler metric with a moment map mu and start up a study on constant mu-scalar curvature K"ahler metric as a generalization of both cscK metric and K"ahler-Ricci soliton and as a continuity path to…

Differential Geometry · Mathematics 2021-01-28 Eiji Inoue

We characterize the existence of a locally conformally K\"ahler metric on a compact complex manifold in terms of currents, adapting the celebrated result of Harvey and Lawson for K\"ahler metrics.

Differential Geometry · Mathematics 2014-10-17 A. Otiman

The J-flow is a parabolic flow on Kahler manifolds. It was defined by Donaldson in the setting of moment maps and by Chen as the gradient flow of the J-functional appearing in his formula for the Mabuchi energy. It is shown here that under…

Differential Geometry · Mathematics 2007-05-23 Ben Weinkove

We study the convergence and curvature blow up of La Nave and Tian's continuity method on a generalised Hirzebruch surface. We show that the Gromov-Hausdorff convergence is similar to that of the Kahler-Ricci flow and obtain curvature…

Differential Geometry · Mathematics 2022-10-11 Hosea Wondo

Using dynamical stability of symplectic curvature flow, we show that on a compact Calabi-Yau manifold, any small symplectic deformation of a K\"ahler form remains K\"ahler.

Differential Geometry · Mathematics 2022-02-10 Jeffrey Streets , Gang Tian

We study singularity formation of K\"ahler-Ricci flow on a K\"ahler manifold that admits a horizontally homothetic conformal submersion into another K\"ahler manifold. We will derive necessary and sufficient conditions for the preservation…

Differential Geometry · Mathematics 2023-01-31 Hoan Nguyen

In this paper, we give an alternative proof for the convergence of K\"ahler-Ricci flow on a Fano mnaifold $(M,J)$. This proof differs from that in [TZ3]. Moreover, we generalize the main theorem of [TZ3] to the case that $(M,J)$ may not…

Differential Geometry · Mathematics 2011-02-24 Gang Tian , Xiaohua Zhu

We prove characterization theorems for relative entropy (also known as Kullback-Leibler divergence), q-logarithmic entropy (also known as Tsallis entropy), and q-logarithmic relative entropy. All three have been characterized axiomatically…

Information Theory · Computer Science 2017-12-14 Tom Leinster

The entropy functional introduced by Colding and Minicozzi plays a fundamental role in the analysis of mean curvature flow. However, unlike the hypersurface case, relatively little about the entropy is known in the higher-codimension case.…

Differential Geometry · Mathematics 2023-10-16 Tang-Kai Lee

Computing uniformization maps for surfaces has been a challenging problem and has many practical applications. In this paper, we provide a theoretically rigorous algorithm to compute such maps via combinatorial Calabi flow for vertex…

Geometric Topology · Mathematics 2020-01-29 Xiang Zhu , Xu Xu

In this note we establish several versions of a compactness theorem for submanifolds. In particular we require only bounds on the second fundamental form and do not assume volume or diameter bounds. As an application we prove a compactness…

Differential Geometry · Mathematics 2011-04-26 Andrew A Cooper

We give a maximum principle proof of interior derivative estimates for the K\"ahler-Ricci flow, assuming local uniform bounds on the metric.

Differential Geometry · Mathematics 2018-12-14 Morgan Sherman , Ben Weinkove

This article is an expository introduction to our paper Convexity of the K-energy and Uniqueness of Extremal metrics. We present the main ideas behind the proof that Mabuchi's K-energy functional is convex along weak geodesics in the space…

Differential Geometry · Mathematics 2025-11-06 Robert J. Berman , Bo Berndtsson