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The Euler equation of an ideal (i.e. inviscid incompressible) fluid can be regarded, following V.Arnold, as the geodesic flow of the right-invariant $L^2$-metric on the group of volume-preserving diffeomorphisms of the flow domain. In this…

Differential Geometry · Mathematics 2023-10-16 Anton Izosimov , Boris Khesin

In this paper, we propose a method of studying the modified Kahler-Ricci flow on projective bundles and give the explicit equation from the view point of symplectic geometry.

Differential Geometry · Mathematics 2015-07-31 Ryosuke Takahashi

This paper is devoted to studying the initial value problem for a third-order dispersive equation for closed curves into K\"ahler manifolds. This equation is a geometric generalization of a two-sphere valued system modeling the motion of…

Analysis of PDEs · Mathematics 2008-07-28 Eiji Onodera

The first part of the paper discusses a second-order quasilinear parabolic equation in a vector bundle over a compact manifold $M$ with boundary $\partial M$. We establish a short-time existence theorem for this equation. The second part of…

Analysis of PDEs · Mathematics 2013-11-08 Artem Pulemotov

Let $X$ be a compact K\"ahler manifold. We study plurisupported currents on $X$, i.e. closed, positive $(1,1)$-currents which are supported on a pluripolar set. In particular, we are able present a technical generalization of…

Complex Variables · Mathematics 2021-06-28 Nicholas McCleerey

We discuss a short-time existence theorem of solutions to the initial value problem for a fourth-order dispersive flow for curves parametrized by the real line into a compact K\"ahler manifold. Our equations geometrically generalize a…

Analysis of PDEs · Mathematics 2013-08-27 Hiroyuki Chihara , Eiji Onodera

Let $(M,g,J)$ be a closed K\"ahler manifold with negative sectional curvature and complex dimension $m := \dim_{\mathbb{C}} M \geq 2$. In this article, we study the unitary frame flow, that is, the restriction of the frame flow to the…

Dynamical Systems · Mathematics 2024-12-25 Mihajlo Cekić , Thibault Lefeuvre , Andrei Moroianu , Uwe Semmelmann

In this paper, we first investigate the integral curvature condition to extend the mean curvature flow of submanifolds in a Riemannian manifold with codimension $d\geq1$, which generalizes the extension theorem for the mean curvature flow…

Differential Geometry · Mathematics 2011-04-07 Kefeng Liu , Hongwei Xu , Fei Ye , Entao Zhao

We consider the K\"ahler-Ricci flow on a Fano manifold. We show that if the curvature remains uniformly bounded along the flow, the Mabuchi energy is bounded below, and the manifold is K-polystable, then the manifold admits a…

Differential Geometry · Mathematics 2011-01-27 Gábor Székelyhidi

Using toric geometry we give an explicit construction of the compact steady solitons for pluriclosed flow first constructed in arXiv:1802.00170. This construction also reveals that these solitons are generalized K\"ahler in two distinct…

Differential Geometry · Mathematics 2019-07-10 Jeffrey Streets , Yury Ustinovskiy

We consider the general K\"ahler-Ricci flows which exist for all time. The zeroth order control on the flow metric potential for various infinite time singularities is the focus. The possible semi-amplness for numerically effective classes…

Differential Geometry · Mathematics 2015-05-18 Zhou Zhang

In this paper we study a generalization of the Kahler-Ricci flow, in which the Ricci form is twisted by a closed, non-negative (1,1)-form. We show that when a twisted Kahler-Einstein metric exists, then this twisted flow converges…

Differential Geometry · Mathematics 2012-11-07 Tristan C. Collins , Gábor Székelyhidi

We propose and investigate two types, the latter with two variants, of notions of partial hyperbolicity accounting for several classes of compact complex manifolds behaving hyperbolically in certain directions, defined by a vector subbundle…

Differential Geometry · Mathematics 2025-03-24 Hisashi Kasuya , Dan Popovici

We give a systematic derivation of the local expressions of the NS H-flux, geometric F- as well as non-geometric Q- and R-fluxes in terms of bivector beta- and two-form B-potentials including vielbeins. They are obtained using a…

High Energy Physics - Theory · Physics 2017-03-08 Marc Andre Heller , Noriaki Ikeda , Satoshi Watamura

We prove the longtime existence and convergence of the Calabi flow on toric Fano surfaces in a large family of Kahler classes where the class has positive extremal Hamiltonian potential and the initial Calabi energy is bounded by some…

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

In this work, we obtain some existence results of Chern-Ricci Flows and the corresponding Potential Flows on complex manifolds with possibly incomplete initial data. We discuss the behaviour of the solution as $t\rightarrow 0$. These…

Differential Geometry · Mathematics 2019-08-16 Shaochuang Huang , Man-Chun Lee , Luen-Fai Tam

We prove a necessary and sufficient condition in terms of the barycenters of a collection of polytopes for existence of coupled K\"ahler-Einstein metrics on toric Fano manifolds. This confirms the toric case of a coupled version of the…

Differential Geometry · Mathematics 2019-10-30 Jakob Hultgren

We establish the $\varepsilon$-regularity theorem for $k$-dimensional, possibly forced, Brakke flows near a static, multiplicity-one triple junction. This result provides the parabolic analogue to L. Simon's foundational work on the…

Analysis of PDEs · Mathematics 2025-10-15 Salvatore Stuvard , Yoshihiro Tonegawa

We analyze the well-posedness of a flow-plate interaction considered in [22, 24]. Specifically, we consider the Kutta-Joukowski boundary conditions for the flow [20, 28, 26], which ultimately give rise to a hyperbolic equation in the…

Analysis of PDEs · Mathematics 2013-11-07 Irena Lasiecka , Justin T. Webster

In prior work the authors introduced a parabolic flow of pluriclosed metrics. Here we give improved regularity results for solutions to this equation. Furthermore, we exhibit this equation as the gradient flow of the lowest eigenvalue of a…

Differential Geometry · Mathematics 2013-10-08 Jeff Streets , Gang Tian
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