Results 281 to 290 of about 310,826 (318)
Some of the next articles are maybe not open access.
Finding Convex Sets in Convex Position
Combinatorica, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
ON CONVEX COMBINATIONS OF CONVEX HARMONIC MAPPINGS
Bulletin of the Australian Mathematical Society, 2017The family${\mathcal{F}}_{\unicode[STIX]{x1D706}}$of orientation-preserving harmonic functions$f=h+\overline{g}$in the unit disc$\mathbb{D}$(normalised in the standard way) satisfying$$\begin{eqnarray}h^{\prime }(z)+g^{\prime }(z)=\frac{1}{(1+\unicode[STIX]{x1D706}z)(1+\overline{\unicode[STIX]{x1D706}}z)},\quad z\in \mathbb{D},\end{eqnarray}$$for some$\
Ferrada Salas, Álvaro Leonardo +2 more
openaire +2 more sources
Convex programming for disjunctive convex optimization
Mathematical Programming, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sebastián Ceria, João Soares
openaire +1 more source
Convex but not Strictly Convex Central Configurations
Journal of Dynamics and Differential Equations, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fernandes, Antonio Carlos +2 more
openaire +1 more source
Convex Functionals on Convex Sets and Convex Analysis
1985Over the last 20 years, parallel to the theory of monotone operators, a calculus for the investigation of convex functionals designated by convex analysis has emerged, which allows one to solve a number of problems in a simple way. To this calculus belong: (α) The subgradient ∂F (a generalization of the classical concept of derivative).
openaire +1 more source
The convex hull of a set of convex polygons
International Journal of Computer Mathematics, 1992The problem of computing the convex hull of a set of convex polygons is considered in two forms: (1) the polygons have the same number of vertices (the restricted case) and (2) the polygons have different numbers of vertices (the general case). The lower bound for the general case is first given. The restricted case is then considered briefly.
H. Chen, Jon G. Rokne
openaire +1 more source
2010
The history of convexity History of convexity is rather astonishing, even paradoxical, and we explain why. On the one hand, the notion of convexity Convexity is extremely natural, so much so that we find it, for example, in works on artArt and anatomyAnatomy without it being defined.
openaire +1 more source
The history of convexity History of convexity is rather astonishing, even paradoxical, and we explain why. On the one hand, the notion of convexity Convexity is extremely natural, so much so that we find it, for example, in works on artArt and anatomyAnatomy without it being defined.
openaire +1 more source
Measuring Convexity via Convex Polygons
2016This paper describes a general approach to compute a family of convexity measures. Inspired by the use of geometric primitives such as circles which are often fitted to shapes to approximate them, we use convex polygons for this task. Convex polygons can be generated in many ways, and several are demonstrated here.
Paul L. Rosin, Jovisa D. Zunic
openaire +1 more source
Convexity with convex combinations
Antarctica Journal of Mathematics, 2013The paper refers to convexity in the space using the vector algebra supported with the geometrical images. The work relies on the properties of the basic convex sets in the plane and space, polygons and polyhedra. The well-known results are presented by using the convex and affine combinations.
openaire +2 more sources