Results 11 to 20 of about 46,580 (177)

Relative convex body in Euclidean and hyperbolic spaces [PDF]

open access: yesDelta Journal of Science, 2017
This paper is to generalize the concept of convex body to the so called relative convexbody in Euclidean space 𝐸􀯡 . Some geometrical and topological properties for this kind of sets arediscussed. Some properties of the central projection map(Beltrami map)
Doaa Mohammed El-sayed   +2 more
doaj   +1 more source

CONVEX BODIES AND GAUSSIAN PROCESSES

open access: yesImage Analysis and Stereology, 2011
For several decades, the topics of the title have had a fruitful interaction. This survey will describe some of these connections, including the GB/GC classification of convex bodies, Ito-Nisio singularities from a geometric viewpoint, Gaussian ...
Richard A Vitale
doaj   +1 more source

Covering the Boundary of Special Convex Bodies with Smaller Homothetic Copies

open access: yesJournal of Harbin University of Science and Technology, 2019
For Hadwiger conjecture that the least number c(K) of translates of the interior of K needed to cover K is at most 2n, according to the fact that c(K) equals the least number of smaller homothetic copies of K with the same homothetic ratio needed to ...
JI Dong-hai, Lv De-jing, MA Ze-min
doaj   +1 more source

COMPARATIVE PRECISION OF THE PIVOTAL ESTIMATORS OF PARTICLE SIZE

open access: yesImage Analysis and Stereology, 2011
The pivotal estimators of the surface area and the volume of a generic "particle" are based on a point sampled test line on an isotropic pivotal plane through a fixed point called the pivotal point.
Luis M Cruz-Orive
doaj   +1 more source

Evaluating bone quality and asymmetrical aplasia of the thoracic vertebral body in Lenke 1A adolescent idiopathic scoliosis using hounsfield units

open access: yesFrontiers in Surgery, 2022
Study DesignRetrospective analysis.ObjectiveTo evaluate bone quality and investigate asymmetrical development of the thoracic vertebral body in adolescent idiopathic scoliosis (AIS) based on Hounsfield unit (HU) measurements obtained from computed ...
Taiqiu Chen   +11 more
doaj   +1 more source

On convex body chasing [PDF]

open access: yesDiscrete & Computational Geometry, 1993
Given a metric space \((S,\rho)\), and a sequence of regions \(F_ i\), \(i=1,\dots,n\), say the plane \(R^ 2\) and a sequence of convex sets, one is supposed to design an algorithm producing a path \(x_ i\), \(i=1,\dots,n\), \(x_ i\in F_ i\), minimizing the cost \(\sum^{n- 1}_{i=1}\rho(x_ i,x_{i+1})\).
Joel Friedman, Nathan Linial
openaire   +2 more sources

Equilibria of Plane Convex Bodies [PDF]

open access: yesJournal of Nonlinear Science, 2021
AbstractWe obtain a formula for the number of horizontal equilibria of a planar convex body K with respect to a center of mass O in terms of the winding number of the evolute of $$\partial K$$ ∂ K with respect to O.
Jonas Allemann   +2 more
openaire   +4 more sources

Banach–Mazur Distance Between Convex Quadrangles

open access: yesDemonstratio Mathematica, 2014
It is proved that the Banach-Mazur distance between arbitrary two convex quadrangles is at most 2. The distance equals 2 if and only if the pair of these quadrangles is a parallelogram and a triangle.
Lassak Marek
doaj   +1 more source

Correspondences between convex geometry and complex geometry [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2017
We present several analogies between convex geometry and the theory of holomorphic line bundles on smooth projective varieties or K\"ahler manifolds. We study the relation between positive products and mixed volumes.
Brian Lehmann, Jian Xiao
doaj   +1 more source

On Some Results in the Geometry of Convex Bodies and their Applications

open access: yesМоделирование и анализ информационных систем, 2015
We give a survey of some results in the geometry of convex bodies and their applications.
M. V. Nevskii
doaj   +1 more source

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