Results 101 to 110 of about 327 (148)

Ricci Curvature Tensor-Based Volumetric Segmentation. [PDF]

open access: yesInt J Comput Vis
Huang J, Chen K, Alpers A, Lei N.
europepmc   +1 more source

A cluster of results on amplituhedron tiles. [PDF]

open access: yesLett Math Phys
Even-Zohar C   +5 more
europepmc   +1 more source

Global Rigidity Theorems for Submanifolds with Parallel Mean Curvature

open access: closedActa Mathematica Scientia, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pengfei Pan, Hongwei Xu, Entao Zhao
openalex   +3 more sources

Substantial Codimension of Submanifolds: Global Results

open access: closedBulletin of the London Mathematical Society, 1987
This is an extension of work of the second author and \textit{R. Tribuzy} [Math. Z. 185, 321-331 (1984; Zbl 0524.53038)] to the case of varying dimension of the first normal space. The formulation of the results and the method of proof are based on the notion of relative nullity.
Marcos Dajczer, Lucio Rodríguez
openalex   +3 more sources

RELATIONS OF TWO TRANSVERSAL SUBMANIFOLDS AND GLOBAL MANIFOLD

open access: closedInternational Journal of Modern Physics A, 2001
In Riemann geometry, the relations of two transversal submanifolds and global manifold are discussed without any concrete models. By replacing the normal vector of a submanifold with the tangent vector of another submanifold, the metric tensors, Christoffel symbols and curvature tensors of the three manifolds are connected at the intersection points ...
Guo-Hong Yang   +3 more
openalex   +3 more sources

A local and global splitting result for real K�hler Euclidean submanifolds

open access: closedArchiv der Mathematik, 2004
The authors investigate the structure of real Kähler Euclidean submanifolds, that is, isometric immersions \(f\) of a Kähler manifold \(M^{2n}\) into \({\mathbb R}^{2n+p}\). Such an immersion is called pluriharmonic if every holomorphic curve in \(M\) is mapped by \(f\) onto a minimal surface in \({\mathbb R}^{2n+p}\).
Luis A. Florit, Fangyang Zheng
openalex   +2 more sources

Lagrangian submanifold landscapes of necessary conditions for maxima in optimum control: Global parameterizations and generalized solutions

open access: closedJournal of Mathematical Sciences, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Piernicola Bettiol, Franco Cardin
openalex   +2 more sources

Global existence in the future and boundedness of submanifolds of solutions of a scalar comparison equation

open access: closedRendiconti del Circolo Matematico di Palermo, 1995
In this nice paper, the following differential (scalar) equation is considered: \[ u'=a(t)f(u)+b(t)g(u),\tag{1} \] where \(a:\mathbb{R}\to\mathbb{R}_+\) and \(b,f,g:\mathbb{R}_+\to\mathbb{R}_+=[0,\infty)\) are continuous functions satisfying the conditions: (i) \(f(u)>0\) for \(u>0\) and \(\int^\infty du/f(u)=\infty\), (ii) there exists a \(T\geq 0 ...
Giancarlo Cantarelli
openalex   +2 more sources

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