Results 41 to 50 of about 96,074 (249)

An Introduction to the Kähler-Ricci Flow [PDF]

open access: yes, 2013
This volume collects lecture notes from courses offered at several conferences and workshops, and provides the first exposition in book form of the basic theory of the Kähler-Ricci flow and its current state-of-the-art. While several excellent books on Kähler-Einstein geometry are available, there have been no such works on the Kähler-Ricci flow.
Boucksom, Sébastien   +2 more
openaire   +5 more sources

A note on conformal Ricci flow [PDF]

open access: yesPacific Journal of Mathematics, 2014
In this note we study conformal Ricci flow introduced by Arthur Fischer. We use DeTurck's trick to rewrite conformal Ricci flow as a strong parabolic-elliptic partial differential equations. Then we prove short time existences for conformal Ricci flow on compact manifolds as well as on asymptotically flat manifolds.
Lu, Peng, Qing, Jie, Zheng, Yu
openaire   +4 more sources

On the stability of harmonic maps under the homogeneous Ricci flow

open access: yesComplex Manifolds, 2018
In this work we study properties of stability and non-stability of harmonic maps under the homogeneous Ricci flow.We provide examples where the stability (non-stability) is preserved under the Ricci flow and an example where the Ricci flow does not ...
Prado Rafaela F. do, Grama Lino
doaj   +1 more source

Cobordism, singularities and the Ricci flow conjecture

open access: yesJournal of High Energy Physics, 2023
In the following work, an attempt to conciliate the Ricci flow conjecture and the Cobordism conjecture, stated as refinements of the Swampland distance conjecture and of the No global symmetries conjecture respectively, is presented.
David Martín Velázquez   +2 more
doaj   +1 more source

The spinorial energy for asymptotically Euclidean Ricci flow

open access: yesAdvanced Nonlinear Studies, 2023
This article introduces a functional generalizing Perelman’s weighted Hilbert-Einstein action and the Dirichlet energy for spinors. It is well defined on a wide class of noncompact manifolds; on asymptotically Euclidean manifolds, the functional is shown
Baldauf Julius, Ozuch Tristan
doaj   +1 more source

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

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-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  

The Ricci flow for nilmanifolds

open access: yesJournal of Modern Dynamics, 2010
We consider the Ricci flow for simply connected nilmanifolds, which translates to a Ricci flow on the space of nilpotent metric Lie algebras. We consider the evolution of the inner product and the evolution of structure constants, as well as the evolution of these quantities modulo rescaling.
openaire   +3 more sources

Evolution of a geometric constant along the Ricci flow

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we establish the first variation formula of the lowest constant λ a b ( g ) $\lambda_{a}^{b}(g)$ along the Ricci flow and the normalized Ricci flow, such that to the following nonlinear equation there exist positive solutions: − Δ u + a u ...
Guangyue Huang, Zhi Li
doaj   +1 more source

Home - About - Disclaimer - Privacy