Results 91 to 100 of about 100,495 (211)

Pluripotential Chern-Ricci flows

open access: yesIndiana University Mathematics Journal
Extending a recent theory developed on compact Kähler manifolds by Guedj-Lu-Zeriahi and the author, we define and study pluripotential solutions to degenerate parabolic complex Monge-Ampère equations on compact Hermitian manifolds. Under natural assumptions on the Cauchy boundary data, we show that the pluripotential solution is semi-concave in time ...
openaire   +4 more sources

Regularising the Ricci Flow Embedding [PDF]

open access: yes, 2010
This paper concerns the analysis of patterns that are specified in terms of non-Euclidean dissimilarity or proximity rather than ordinal values. In prior work we have reported a means of correcting or rectifying the similarities so that the non-Euclidean artifacts are minimized.
Xu W., Hancock E.R., Wilson R.C.
openaire   +1 more source

Recent Developments in Ricci Flows

open access: yesNotices of the American Mathematical Society, 2021
This is a survey on recent developments in Ricci flows.
openaire   +2 more sources

Charting cellular differentiation trajectories with Ricci flow

open access: yesNature Communications
Complex biological processes, such as cellular differentiation, require intricate rewiring of intra-cellular signalling networks. Previous characterisations revealed a raised network entropy underlies less differentiated and malignant cell states.
Anthony Baptista   +2 more
doaj   +1 more source

Combinatorial Ricci Flows on Surfaces

open access: yesJournal of Differential Geometry, 2003
We show that the analog of Hamilton's Ricci flow in the combinatorial setting produces solutions which converge exponentially fast to Thurston's circle packing on surfaces. As a consequence, a new proof of Thurston's existence of circle packing theorem is obtained. As another consequence, Ricci flow suggests a new algorithm to find circle packings.
Chow, Bennett, Luo, Feng
openaire   +4 more sources

A Complexity‐Based Approach to Migration Policy Change: The Case of the German Residence Act

open access: yesRegulation &Governance, EarlyView.
ABSTRACT This paper adapts and applies existing indicators to measure the complexity of German migration policy over time. Building on recent scholarship that conceptualizes migration policy as multidimensional, I adapt a measurement strategy from the EUPLEX Project to capture three key components of regulatory complexity: structural, linguistic, and ...
Pau Palop‐García
wiley   +1 more source

Gauge fields in a string-cigar braneworld

open access: yesPhysics 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
doaj   +1 more source

Bed‐scale quantitative discrimination of hyperpycnites from intrabasinal turbidites—Results from a channelised slope system in the Upper Carboniferous Westward Ho! Formation, United Kingdom

open access: yesSedimentology, EarlyView.
ABSTRACT Features considered indicative of hyperpycnites and intrabasinal turbidites overlap. Outcrop study presented here suggests that the Westward Ho! Formation forms an 800 m high deepwater‐slope system dominated by hyperpycnites. Taking this unit, and other successions where hyperpycnites have been described, as having been deposited solely from ...
Tony Reynolds
wiley   +1 more source

The RhoA guanine exchange factor ABR: a glucose‐sensitive mediator of actin reorganization in feto‐placental arterial endothelial cells altered by gestational diabetes mellitus

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of proposed relationship between hyperglycaemia, gestational diabetes mellitus (GDM), active BCR‐related (ABR), RhoA and actin organization of feto‐placental arterial endothelial cells (fpEC). Hyperglycaemia upregulates ABR, which in turn increases RhoA activation.
Silvija Tokic   +9 more
wiley   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy