Results 61 to 70 of about 528,992 (279)

Constant Mean Curvature Spacelike Surfaces in Lorentzian Warped Products

open access: yesAdvances in Mathematical Physics, 2015
We characterize the spacelike slices of a Lorentzian warped product as the only constant mean curvature spacelike surfaces under suitable geometrical and physical assumptions.
Juan A. Aledo, Rafael M. Rubio
doaj   +1 more source

A new type of canal surface in Euclidean 4-space E^4

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Bu çalışmada, E^4 4-boyutlu Öklid uzayında, merkez eğrisinin paralel öteleme çatısı vektörleri yardımıyla tanımlanan kanal yüzeyini örneği ile verdik.
Günay Öztürk   +2 more
doaj   +1 more source

The Theoretical Study of Kink Deformation in Graphite Based on Differential Geometric Method

open access: yesNanomaterials, 2022
Kink deformation is often observed in materials with laminated layers. Graphite composed of stacked graphene layers has the unique laminated structure of carbon nanomaterials.
Xiao-Wen Lei   +2 more
doaj   +1 more source

Mean curvature flows and isotopy problems [PDF]

open access: yes, 2012
In this note, we discuss the mean curvature flow of graphs of maps between Riemannian manifolds. Special emphasis will be placed on estimates of the flow as a non-linear parabolic system of differential equations.
Wang, Mu-Tao
core  

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

A survey on Inverse mean curvature flow in ROSSes

open access: yesComplex Manifolds, 2017
In this survey we discuss the evolution by inverse mean curvature flow of star-shaped mean convex hypersurfaces in non-compact rank one symmetric spaces.
Pipoli Giuseppe
doaj   +1 more source

Twisted Hypersurfaces in Euclidean 5-Space

open access: yesMathematics, 2023
The twisted hypersurfaces x with the (0,0,0,0,1) rotating axis in five-dimensional Euclidean space E5 is considered. The fundamental forms, the Gauss map, and the shape operator of x are calculated.
Yanlin Li, Erhan Güler
doaj   +1 more source

Stable constant mean curvature hypersurfaces [PDF]

open access: yesProceedings of the American Mathematical Society, 2007
This paper is devoted to the study of constant-mean-curvature-hypersurfaces \(M^n\) (called here \(H\)-hypersurfaces) in a Riemannian manifold \(\mathcal N^{n+1} \; (n = 3, 4)\,\) which has sectional curvature uniformly bounded from below. If \(\text{sec} (\mathcal N)\) denotes the infimum of the sectional curvatures of \(\mathcal N\) and \(H\) the ...
ELBERT F, NELLI, BARBARA, ROSENBERG H.
openaire   +4 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

MCnet: A Neural Network Method for Mean Curvature Optimization on Image Surfaces

open access: yesIEEE Access
Mean curvature is fundamentally important for various research fields, including differential geometry in mathematics, cell membrane modeling in biophysics and image processing in computer vision.
Zhili Wei, Wenming Tang, Yuanhao Gong
doaj   +1 more source

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