Results 11 to 20 of about 103,878 (263)

The Soliton-Ricci Flow with variable volume forms

open access: greenComplex Manifolds, 2016
We introduce a flow of Riemannian metrics and positive volume forms over compact oriented manifolds whose formal limit is a shrinking Ricci soliton. The case of a fixed volume form has been considered in our previouswork.We still call this new flow, the ...
Pali Nefton
doaj   +2 more sources

The spinorial energy for asymptotically Euclidean Ricci flow [PDF]

open access: goldAdvanced 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   +2 more sources

Ricci flow coupled with harmonic map flow [PDF]

open access: yesAnnales scientifiques de l'École normale supérieure, 2012
We investigate a new geometric flow which consists of a coupled system of the Ricci flow on a closed manifold M with the harmonic map flow of a map phi from M to some closed target manifold N with a (possibly time-dependent) positive coupling constant alpha.
Müller, Reto
openaire   +7 more sources

The Ricci–Bourguignon flow [PDF]

open access: yesPacific Journal of Mathematics, 2017
Minor ...
GIOVANNI CATINO   +4 more
openaire   +4 more sources

The Chern–Ricci flow

open access: yesRendiconti Lincei, Matematica e Applicazioni, 2022
We give a survey on the Chern–Ricci flow, a parabolic flow of Hermitian metrics on complex manifolds. We emphasize open problems and new directions.
Valentino Tosatti, Ben Weinkove
openaire   +3 more sources

Yamabe constant evolution and monotonicity along the conformal Ricci flow

open access: yesAIMS Mathematics, 2022
We investigate the Yamabe constant's behaviour in a conformal Ricci flow. For conformal Ricci flow metric g(t), t∈[0,T), the time evolution formula for the Yamabe constant Y(g(t)) is derived.
Yanlin Li   +3 more
doaj   +1 more source

The ∗-Ricci Operator on Hopf Real Hypersurfaces in the Complex Quadric

open access: yesMathematics, 2022
We study the ∗-Ricci operator on Hopf real hypersurfaces in the complex quadric. We prove that for Hopf real hypersurfaces in the complex quadric, the ∗-Ricci tensor is symmetric if and only if the unit normal vector field is singular.
Rongsheng Ma, Donghe Pei
doaj   +1 more source

SOME RESULTS ON ∗−RICCI FLOW [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2021
In this paper we have introduced the notion of ∗-Ricci flow and shown that ∗-Ricci soliton which was introduced by Kaimakamis and Panagiotidou in 2014 which is a self similar soliton of the ∗-Ricci flow. We have also find the deformation of geometric curvature tensors under ∗-Ricci flow.
Dipankar Debnath, Nirabhra Basu
openaire   +2 more sources

Ricci Flow and Ricci Limit Spaces [PDF]

open access: yes, 2020
I survey some of the developments in the theory of Ricci flow and its applications from the past decade. I focus mainly on the understanding of Ricci flows that are permitted to have unbounded curvature in the sense that the curvature can blow up as we wander off to spatial infinity and/or as we decrease time to some singular time.
openaire   +2 more sources

Evolution for First Eigenvalue of LT,f on an Evolving Riemannian Manifold

open access: yesMathematics, 2022
In this paper, evolution formulas for the first non-zero eigenvalue of the operator LT,f on a weighted closed Riemannian manifold along the Ricci flow as well as along the Yamabe flow are formulated.
Apurba Saha   +4 more
doaj   +1 more source

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