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In the present paper, we prove a stability theorem for the Kaehler Ricci flow near the infimum of the functional E_1 under the assumption that the initial metric has Ricci > -1 and |Riem| bounded. At present stage, our main theorem still…

Differential Geometry · Mathematics 2007-05-23 Xiuxiong Chen

In this short article, we improve the dynamical stability and instability results for Ricci-flat metrics under Ricci flow proved by Sesum and Haslhofer, getting rid of the integrability assumption.

Differential Geometry · Mathematics 2015-10-14 Robert Haslhofer , Reto Müller

Assuming uniform bounds for the curvature, the exponential convergence of the K\"ahler-Ricci flow is established under two conditions which are a form of stability: the Mabuchi energy is bounded from below, and the dimension of the space of…

Differential Geometry · Mathematics 2007-05-23 D. H. Phong , Jacob Sturm

We consider dynamical stability for a modified Ricci flow equation whose stationary solutions include Einstein and Ricci soliton metrics. Our focus is on homogeneous metrics on non-compact manifolds. Following the program of Guenther,…

Differential Geometry · Mathematics 2014-09-11 Michael Bradford Williams , Haotian Wu

We define two conformal structures on $S^1$ which give rise to a different view of the affine curvature flow and a new curvature flow, the ``$Q$-curvature flow". The steady state of these flows are studied. More specifically, we prove four…

Analysis of PDEs · Mathematics 2007-05-23 Yilong Ni , Meijun Zhu

We prove the convergence of K\"ahler-Ricci flow with some small initial curvature conditions. As applications, we discuss the convergence of K\"ahler-Ricci flow when the complex structure varies on a K\"ahler-Einstein manifold.

Differential Geometry · Mathematics 2009-07-30 Xiuxiong Chen , Haozhao Li

We study a gravitating spherically symmetric nonrelativistic configuration consisting of a spinor fluid whose effective equation of state is derived from a consideration of a limiting system supported by a massive nonlinear spinor field.…

General Relativity and Quantum Cosmology · Physics 2021-06-17 Vladimir Dzhunushaliev , Vladimir Folomeev

This paper investigates the nature of the development of two-dimensional steady flow of an incompressible fluid at the rear stagnation-point.

Fluid Dynamics · Physics 2013-02-11 Chio Chon Kit

We review recent results relating linear stability to dynamical stability and the scalar curvature rigidity of Einstein manifolds. We discuss closed and open Einstein manifolds as well as complete noncompact Einstein manifolds which are…

Differential Geometry · Mathematics 2025-10-29 Klaus Kroencke

We show that certain radially symmetric steady states of compressible viscous fluids in domains with inflow/outflow boundary conditions are unconditionally stable. This means that any not necessarily radially symmetric solution of the…

Analysis of PDEs · Mathematics 2024-12-20 Eduard Feireisl , Piotr Gwiazda , Agnieszka Świerczewska-Gwiazda

Experiments on streams of water flowing down a rigid substrate have been performed for various plate inclinations and flow rates, and we focused on the regime of stationary meanders. The outcome is that (i) the flow is highly hysteretic :…

Fluid Dynamics · Physics 2007-05-23 Nolwenn Le Grand-Piteira , Adrian Daerr , Laurent Limat

In this paper we prove a compactness result for Ricci flows with bounded scalar curvature and entropy. It states that given any sequence of such Ricci flows, we can pass to a subsequence that converges to a metric space which is smooth away…

Differential Geometry · Mathematics 2016-05-16 Richard H. Bamler

The asymptotic stability of two-dimensional stationary flows in a non-symmetric exterior domain is considered. Under the smallness condition on initial perturbations, we show the stability of the small stationary flow whose leading profile…

Analysis of PDEs · Mathematics 2019-10-14 Mitsuo Higaki

We consider the normalized Ricci flow evolving from an initial metric which is conformally compactifiable and asymptotically hyperbolic. We show that there is a unique evolving metric which remains in this class, and that the flow exists up…

Differential Geometry · Mathematics 2019-01-07 Eric Bahuaud , Eric Woolgar

This paper studies the normalized Ricci flow from a slight perturbation of the hyperbolic metric on $\mathbb H^n$. It's proved that if the perturbation is small and decays sufficiently fast at the infinity, then the flow will converge…

Differential Geometry · Mathematics 2009-07-01 Haozhao Li , Hao Yin

We prove the existence of Ricci flow starting from a class of metrics with unbounded curvature, which are doubly-warped products over an interval with a spherical factor pinched off at an end. These provide a forward evolution from some…

Differential Geometry · Mathematics 2018-05-25 Timothy Carson

We study the subsequential convergence of singular solutions to the Ricci flow with prescribed constant in space geodesic curvature on compact surfaces with boundary. Furthermore, we show that in the particular case of rotational symmetry,…

Differential Geometry · Mathematics 2023-11-01 Jean C. Cortissoz , Juan J. Villamarín

In this paper, we study the stability two-dimensional (2D) steady Euler flows with sharply concentrated vorticity in a simply-connected bounded domain. These flows are obtained as maximizers of the kinetic energy subject to the constraint…

Analysis of PDEs · Mathematics 2023-05-16 Guodong Wang

Analytic methods show stability of the stationary accretion of test fluids but they are inconclusive in the case of self-gravitating stationary flows. We investigate numerically stability of those stationary flows onto compact objects that…

General Relativity and Quantum Cosmology · Physics 2008-12-30 Patryk Mach , Edward Malec

We show the existence of a solution to the Ricci flow with a compact length space of bounded curvature, i.e., a space that has curvature bounded above and below in the sense of Alexandrov, as its initial condition. We show that this flow…

Differential Geometry · Mathematics 2025-03-11 Diego Corro , Masoumeh Zarei , Adam Moreno