Results 101 to 110 of about 9,543 (234)
The Ricci flow and the early universe
Annals of Physics, 2023 A framework of quantum spacetime reference frame is proposed and reviewed, in which the quantum spacetime at the Gaussian approximation is deformed by the Ricci flow. At sufficient large scale, the Ricci flow not only smooths out local small irregularities making the universe a homogeneous and isotropic Friedmann-Robertson-Walker metric, but also ...
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On the blow-up of four-dimensional Ricci flow singularities
, 2013 textIn 2002, Feldman, Ilmanen, and Knopf constructed the first example of a non-trivial (i.e. non-constant curvature) complete non-compact shrinking soliton, and conjectured that it models a Ricci flow singularity forming on a closed four-manifold.
Máximo Alexandrino Nogueira, Davi
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anthbapt/Cellular-differentiation-trajectories-with-Ricci-flow: version_0.1
Charting cellular differentiation trajectories with normalised discrete Ricci ...
Anthony Baptista
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Sigma model renormalisation group flows, singularities and some remarks on cosmology
Physics Letters BWe investigate the properties of the renormalisation group (RG) flow of two-dimensional sigma models with a generic metric coupling by utilising known results for the Ricci flow. We point out that on many occasions the RG flow develops singularities, due
Georgios Papadopoulos
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Gauge fields in a string-cigar braneworld
Physics Letters B, 2015 In this work, we investigate the properties of the Abelian gauge vector field in the background of a string-cigar braneworld. Both the thin and thick brane limits are considered.
F.W.V. Costa +3 more
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Instantaneously complete Ricci flows on surfaces [PDF]
The intention of this thesis is to give a survey of instantaneously complete Ricci flows on surfaces, focussing on the existence and uniqueness of its Cauchy problem.
Giesen, Gregor
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Collapsing immortal Kähler-Ricci flows
Forum of Mathematics, PiWe consider the Kähler-Ricci flow on compact Kähler manifolds with semiample canonical bundle and intermediate Kodaira dimension, and show that the flow collapses to a canonical metric on the base of the Iitaka fibration in the locally smooth topology ...
Hans-Joachim Hein +2 more
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A local singularity analysis for the Ricci flow and its applications to Ricci flows with bounded scalar curvature. [PDF]
Calc Var Partial Differ Equ, 2022 Buzano R, Di Matteo G.
europepmc +1 more source
Remarks on the Extension of the Ricci Flow [PDF]
Journal of Geometric Analysis, 2012 9 pages, to appear in Journal of Geometric ...
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Complete $(2+1)$-dimensional Ricci flow spacetimes
, 2022 Ricci flow spacetimes were introduced by Kleiner & Lott as a way to describe Ricci flow through singularities, and have since been used elsewhere in the literature, prompting the question of their rigidity.
Peachey, Luke Thomas
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