Results 11 to 20 of about 4,657,305 (302)

An introduction to conformal Ricci flow [PDF]

open access: greenClassical and Quantum Gravity, 2004
52 pages, 1 ...
Arthur E. Fischer
openalex   +4 more sources

Uniqueness of the Ricci flow on complete noncompact manifolds [PDF]

open access: bronze, 2006
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
Bing-Long Chen, Xi-Ping Zhu
openalex   +6 more sources

NONHOLONOMIC RICCI FLOWS AND RUNNING COSMOLOGICAL CONSTANT I: 4D TAUB-NUT METRICS [PDF]

open access: green, 2007
In this work we construct and analyze exact solutions describing Ricci flows and nonholonomic deformations of four dimensional (4D) Taub-NUT spacetimes. It is outlined a new geometric techniques of constructing Ricci flow solutions.
Sergiu I. Vacaru, Mihai Visinescu
openalex   +4 more sources

Non-local interaction in discrete Ricci curvature-induced biological aggregation [PDF]

open access: yesRoyal Society Open Science
We investigate the collective dynamics of multi-agent systems in two- and three-dimensional environments generated by minimizing discrete Ricci curvature with local and non-local interaction neighbourhoods.
Jyotiranjan Beuria, Laxmidhar Behera
doaj   +2 more sources

Scalar Curvature, Entropy, and Generalized Ricci Flow [PDF]

open access: yesInternational mathematics research notices, 2022
We derive a family of weighted scalar curvature monotonicity formulas for generalized Ricci flow, involving an auxiliary dilaton field evolving by a certain reaction–diffusion equation motivated by renormalization group flow.
J. Streets
semanticscholar   +1 more source

Parabolic Frequency Monotonicity on Ricci Flow and Ricci-Harmonic Flow with Bounded Curvatures [PDF]

open access: yesJournal of Geometric Analysis, 2022
In this paper, we study the monotonicity of parabolic frequency motivated by Baldauf and Kim (Parabolic frequency on Ricci flows. To appear in Int. Math. Res. Not., rnac128.
C. Li, Yi Li, Kairui Xu
semanticscholar   +1 more source

Weak scalar curvature lower bounds along Ricci flow [PDF]

open access: yesScience China Mathematics, 2021
In this paper, we study Ricci flow on compact manifolds with a continuous initial metric. It was known from Simon (2002) that the Ricci flow exists for a short time.
Wenshuai Jiang   +2 more
semanticscholar   +1 more source

Uniqueness of compact ancient solutions to the higher-dimensional Ricci flow [PDF]

open access: yesJournal für die Reine und Angewandte Mathematik, 2021
In dimensions n ≥ 4 {n\geq 4} , an ancient κ-solution is a nonflat, complete, ancient solution of the Ricci flow that is uniformly PIC and weakly PIC2; has bounded curvature; and is κ-noncollapsed.
S. Brendle   +3 more
semanticscholar   +1 more source

Charting cellular differentiation trajectories with Ricci flow

open access: yesbioRxiv, 2023
Complex biological processes, such as cellular differentiation, require an intricate rewiring of intra-cellular signalling networks. Previous characterisations of these networks revealed that promiscuity in signalling, quantified by a raised network ...
Anthony Baptista   +2 more
semanticscholar   +1 more source

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