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Related papers: On a Calabi-type estimate for pluriclosed flow

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This article presents an analysis of the normalized Yamabe flow starting at and preserving a class of compact Riemannian manifolds with incomplete edge singularities and negative Yamabe invariant. Our main results include uniqueness,…

Analysis of PDEs · Mathematics 2020-03-03 Eric Bahuaud , Boris Vertman

The marginal likelihood, or Bayesian evidence, is a crucial quantity for Bayesian model comparison but its computation can be challenging for complex models, even in parameters space of moderate dimension. The learned harmonic mean…

Methodology · Statistics 2026-01-27 Alicja Polanska , Jason D. McEwen

We give a short and self-contained proof for rates of convergence of the Allen-Cahn equation towards mean curvature flow, assuming that a classical (smooth) solution to the latter exists and starting from well-prepared initial data. Our…

Analysis of PDEs · Mathematics 2020-08-19 Julian Fischer , Tim Laux , Theresa M. Simon

In this paper, we show that if the mean curvature of a closed smooth embedded mean curvature flow in R^3 is of type-I, then the rescaled flow at the first finite singular time converges smoothly to a self-shrinker flow with multiplicity…

Differential Geometry · Mathematics 2021-03-25 Haozhao Li , Bing Wang

Normalizing flows provide a general mechanism for defining expressive probability distributions, only requiring the specification of a (usually simple) base distribution and a series of bijective transformations. There has been much recent…

Metric regularity has emerged during last 2-3 decades as one of the central concepts of variational analysis. The roots of this concept go back to a circle of fundamental regularity ideas of classical analysis embodied in such results as…

Optimization and Control · Mathematics 2015-10-27 A. D. Ioffe

Mean curvature flow evolves isometrically immersed base manifolds $M$ in the direction of their mean curvatures in an ambient manifold $\bar{M}$. If the base manifold $M$ is compact, the short time existence and uniqueness of the mean…

Differential Geometry · Mathematics 2007-06-13 Bing-Long Chen , Le Yin

The recent work of Morini-Oronzio-Spadaro and the third author shows that, in three dimensions, a flat-flow solution of the volume-preserving mean curvature flow that converges to a single ball, which is the case for instance when the…

Analysis of PDEs · Mathematics 2026-03-26 Vedansh Arya , Seongmin Jeon , Vesa Julin

The derivative expnsion in the context of IIB string scattering compactified on non-trivial K3 and other Calabi-Yau manifolds is formulated. The scattering data in terms of automorphic functions can be inverted to find the these metrics.…

General Physics · Physics 2007-05-23 Gordon Chalmers

We introduce a new geometric flow of Hermitian metrics which evolves an initial metric along the second derivative of the Chern scalar curvature. The flow depends on the choice of a background metric, it always reduces to a scalar equation…

Differential Geometry · Mathematics 2018-06-08 Lucio Bedulli , Luigi Vezzoni

Let $(\mathscr{C}, \omega_{\mathscr{C}})$ be a Ricci-flat, simply connected, conical K\"ahler manifold. We establish a Liouville theorem for constant scalar curvature K\"ahler (cscK) metrics on $\mathscr{C}$. The theorem asserts that any…

Differential Geometry · Mathematics 2025-02-05 Johan Jacoby Klemmensen

We propose a construction of mean curvature flows by approximation for very general initial data, in the spirit of the works of Brakke and of Kim & Tonegawa based on the theory of varifolds. Given a general varifold, we construct by…

Differential Geometry · Mathematics 2025-10-02 Blanche Buet , Gian Paolo Leonardi , Simon Masnou , Abdelmouksit Sagueni

A universal theory of linear instabilities in swirling flows, occurring in both natural settings and industrial applications, is formulated. The theory encompasses a wide range of open and confined flows, including spiral isothermal flows…

Fluid Dynamics · Physics 2025-02-06 Oleg N. Kirillov , Innocent Mutabazi

Entropy is a natural geometric quantity measuring the complexity of a surface embedded in $\mathbb{R}^3$. For dynamical reasons relating to mean curvature flow, Colding-Ilmanen-Minicozzi-White conjectured that the entropy of any closed…

Differential Geometry · Mathematics 2015-09-22 Daniel Ketover , Xin Zhou

We derive identities for general flows of Riemannian metrics that may be regarded as local mean-value, monotonicity, or Lyapunov formulae. These generalize previous work of the first author for mean curvature flow and other nonlinear…

Differential Geometry · Mathematics 2007-05-23 Klaus Ecker , Dan Knopf , Lei Ni , Peter Topping

We establish a parabolic version of Tian's $C^{2,\alpha}$-estimate for conical complex Monge-Ampere equations, which includes conical K\"ahler-Einstein metrics. Our estimate will complete the proof of the existence of unnormalized conical…

Differential Geometry · Mathematics 2018-03-22 Liangming Shen

In this paper, we continue to study the Calabi flow on complex tori. We develop a new method to obtain an explicit bound of the curvature of the Calabi flow. As an application, we show that when $n=2$, the Calabi flow starting from a weak…

Differential Geometry · Mathematics 2016-09-08 Hongnian Huang

This paper proves error estimates for $H^2$ conforming finite elements for equations which model the flow of surfaces by different powers of the mean curvature (this includes mean curvature flow). for an adapted scheme originally proposed…

Numerical Analysis · Mathematics 2021-03-26 Axel Kröner , Heiko Kröner

We consider the formation of singularities along the Calabi flow with the assumption of the uniform Sobolev constant. In particular, on K\"ahler surface we show that any "maximal bubble" has to be a scalar flat ALE K\"ahler metric. In some…

Differential Geometry · Mathematics 2009-12-24 Xiuxiong Chen , Weiyong He

We consider a general curvature equation $F(\kappa)=G(X,\nu(X))$, where $\kappa$ is the principal curvature of the hypersurface $M$ with position vector $X$. It includes the classical prescribed curvature measures problem and area measures…

Analysis of PDEs · Mathematics 2023-07-27 Shanwei Ding , Guanghan Li
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