Results 151 to 160 of about 4,659,666 (289)

On the conditions to extend Ricci flow(III) [PDF]

open access: yesarXiv, 2011
We simplify and improve the curvature estimates in the paper: On the conditions to extend Ricci flow(II). Furthermore, we develop some volume estimates for the Ricci flow with bounded scalar curvature. These estimates can be applied to study the singularities of the Ricci flow and convergence properties of the K\"ahler Ricci flow.
arxiv  

Entanglement entropy and the Ricci flow

open access: yesPhysics Letters B, 2007
We analyze the Ricci flow of a noncompact metric that describes a two-dimensional black hole. We consider entanglement entropy of a 2d black hole which is due to the quantum correlations between two subsystems: one is inside and the other is outside the black hole horizon.
openaire   +3 more sources

Mass Under the Ricci Flow

open access: yesCommunications in Mathematical Physics, 2007
In this paper, we study the change of the ADM mass of an ALE space along the Ricci flow. Thus we first show that the ALE property is preserved under the Ricci flow. Then, we show that the mass is invariant under the flow in dimension three (similar results hold in higher dimension with more assumptions).
Xianzhe Dai, Li Ma
openaire   +3 more sources

Half a Century of Public Sector Accounting Research Through Bibliometric Analysis: Looking Back to Move Forward

open access: yesFinancial Accountability &Management, EarlyView.
ABSTRACT This literature review aims to highlight the themes and the developments of public sector accounting (PSA) research over the last five decades (1970–2019), analyzing 2187 papers though a combination of bibliometric (co‐word) analysis and qualitative insights into the selected papers.
Mariafrancesca Sicilia   +4 more
wiley   +1 more source

Ricci-mean curvature flows in gradient shrinking Ricci solitons [PDF]

open access: yesarXiv, 2015
Huisken studied asymptotic behavior of a mean curvature flow in a Euclidean space when it develops a singularity of type I, and proved that its rescaled flow converges to a self-shrinker in the Euclidean space. In this paper, we generalize this result for a Ricci-mean curvature flow moving along a Ricci flow constructed from a gradient shrinking Ricci ...
arxiv  

Remarks on the Extension of the Ricci Flow [PDF]

open access: yesJournal of Geometric Analysis, 2012
9 pages, to appear in Journal of Geometric ...
openaire   +3 more sources

The drivers of deskilling: Comparing highly skilled Ukrainian refugee women in Austria and Poland

open access: yesInternational Migration, EarlyView.
Abstract The arrival of Ukrainian refugees in the European Union (EU) has reignited debates about the accessibility of labour markets, deskilling and underemployment. The Ukrainian case is especially significant because most refugees are highly skilled women and the implementation of the EU's temporary protection directive has provided them with ...
Petra Aigner   +5 more
wiley   +1 more source

f– Kenmotsu Metric as Conformal Ricci Soliton

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2017
In this paper, we study conformal Ricci solitons in f- Kenmotsu manifolds. We derive conditions for f-Kenmotsu metric to be a conformal Ricci soliton.
Nagaraja H. G., Venu K.
doaj   +1 more source

Trans-Sasakian 3-Manifolds with Reeb Flow Invariant Ricci Operator

open access: yesMathematics, 2018
Let M be a three-dimensional trans-Sasakian manifold of type ( α , β ) . In this paper, we obtain that the Ricci operator of M is invariant along Reeb flow if and only if M is an α -Sasakian manifold, cosymplectic manifold or a
Yan Zhao, Wenjie Wang, Ximin Liu
doaj   +1 more source

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