Results 41 to 50 of about 103,878 (263)

Space of Ricci Flows I

open access: yesCommunications on Pure and Applied Mathematics, 2012
AbstractIn this paper, we study the moduli spaces of m‐dimensional, κ‐noncollapsed Ricci flow solutions with bounded $\int |Rm|^{{m}/{2}}$ and bounded scalar curvature. We show a weak compactness theorem for such moduli spaces and apply it to study the estimates of isoperimetric constants, the Kähler‐Ricci flows, and the moduli spaces of gradient ...
Chen, Xiuxiong, Wang, Bing
openaire   +3 more sources

Ricci Solitons and Einstein-Scalar Field Theory

open access: yes, 2009
B List has recently studied a geometric flow whose fixed points correspond to static Ricci flat spacetimes. It is now known that this flow is in fact Ricci flow modulo pullback by a certain diffeomorphism.
Anderson M T   +20 more
core   +3 more sources

Ricci-Bourgoignon Flow on Contact Manifolds

open access: yesپژوهش‌های ریاضی, 2020
Introduction After pioneering work of Hamilton in 1982, Ricci flow and other geometric flows became as one of the most interesting topics in both mathematics and physics.
Ghodratallah Fasihi-Ramandi   +1 more
doaj  

Uniqueness of the Ricci Flow on Complete Noncompact Manifolds

open access: yes, 2005
The Ricci flow is an evolution system on metrics. For a given metric as initial data, its local existence and uniqueness on compact manifolds was first established by Hamilton \cite{Ha1}. Later on, De Turck \cite{De} gave a simplified proof. In the later
Chen, Bing-Long, Zhu, Xi-Ping
core   +4 more sources

The Ricci curvature and the normalized Ricci flow on the Stiefel manifolds $ \operatorname{SO}(n)/\operatorname{SO}(n-2) $

open access: yesElectronic Research Archive
We proved that on every Stiefel manifold $ V_2\mathbb{R}^n\cong \operatorname{SO}(n)/\operatorname{SO}(n-2) $ with $ n\ge 3 $ the normalized Ricci flow preserves the positivity of the Ricci curvature of invariant Riemannian metrics with positive Ricci ...
Nurlan A. Abiev
doaj   +1 more source

Ricci flow on Kähler manifolds [PDF]

open access: yesComptes Rendus de l'Académie des Sciences - Series I - Mathematics, 2001
In this paper, we announce the following results: Let M be a Kaehler-Einstein manifold with positive scalar curvature. If the initial metric has nonnegative bisectional curvature and positive at least at one point, then the K hler-Ricci flow converges exponentially fast to a Kaehler-Einstein metric with constant bisectional curvature.
Chen, Xiuxiong, Tian, Gang
openaire   +3 more sources

Ricci ϕ-invariance on almost cosymplectic three-manifolds

open access: yesOpen Mathematics, 2023
Let M3{M}^{3} be a strictly almost cosymplectic three-manifold whose Ricci operator is weakly ϕ\phi -invariant. In this article, it is proved that Ricci curvatures of M3{M}^{3} are invariant along the Reeb flow if and only if M3{M}^{3} is locally ...
Pan Quanxiang
doaj   +1 more source

Auditory Hair Cell Mechanotransduction Channels Dynamically Shape the Mechanical Properties of Their Membrane Environment

open access: yesAdvanced Science, EarlyView.
This work shows, for the first time, that the stereocilia membrane in cochlear hair cells is dynamically regulated by the mechanotransduction channel to impact the membrane mechanical properties. This work provides direct evidence that the opening and closing associated with the MET channel is regulating the membrane viscosity suggesting that the MET ...
Shefin S. George, Anthony J. Ricci
wiley   +1 more source

A modified Kähler–Ricci flow [PDF]

open access: yesMathematische Annalen, 2009
In this note, a modified K hler-Ricci flow is introduced and studied. The main point is to show the flexibility of K hler-Ricci flow and summarize some useful techniques.
openaire   +3 more sources

$${\epsilon}$$ ϵ -regularity for shrinking Ricci solitons and Ricci flows [PDF]

open access: yesGeometric and Functional Analysis, 2017
Comment: 22 ...
Ge, Huabin, Jiang, Wenshuai
openaire   +3 more sources

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