Results 21 to 30 of about 43,460 (287)

A new kind of inner superefficient points

open access: yesJournal of Inequalities and Applications, 2017
In this paper, some properties of the interior of positive dual cones are discussed. With the help of dilating cones, a new notion of inner superefficient points for a set is introduced.
Yihong Xu, Lei Wang, Chunhui Shao
doaj   +1 more source

An inexact multiblock alternating direction method for grasping-force optimization of multifingered robotic hands

open access: yesJournal of Inequalities and Applications, 2023
In this paper, we present an inexact multiblock alternating direction method for the point-contact friction model of the force-optimization problem (FOP).
Yaling Zhang, Xuewen Mu
doaj   +1 more source

Geometric duality theory of cones in dual pairs of vector spaces [PDF]

open access: yes, 2015
This paper will generalize what may be termed the "geometric duality theory" of real pre-ordered Banach spaces which relates geometric properties of a closed cone in a real Banach space, to geometric properties of the dual cone in the dual Banach space ...
Messerschmidt, Miek
core   +1 more source

Spectrahedral cones generated by rank 1 matrices [PDF]

open access: yes, 2014
Let ${\cal S}_+^n \subset {\cal S}^n$ be the cone of positive semi-definite matrices as a subset of the vector space of real symmetric $n \times n$ matrices.
Hildebrand, Roland
core   +5 more sources

On the convex cones arising from classifications of partial entanglement in the three qubit system

open access: yes, 2019
In order to classify partial entanglement of multi-partite states, it is natural to consider the convex hulls, intersections and differences of basic convex cones obtained from partially separable states with respect to partitions of systems.
Han, Kyung Hoon, Kye, Seung-Hyeok
core   +1 more source

From Hahn–Banach Type Theorems to the Markov Moment Problem, Sandwich Theorems and Further Applications

open access: yesMathematics, 2020
The aim of this review paper is to recall known solutions for two Markov moment problems, which can be formulated as Hahn–Banach extension theorems, in order to emphasize their relationship with the following problems: (1) pointing out a previously ...
Octav Olteanu
doaj   +1 more source

Characterization of isoperimetric sets inside almost-convex cones

open access: yes, 2016
In this note we characterize isoperimetric regions inside almost-convex cones. More precisely, as in the case of convex cones, we show that isoperimetric sets are given by intersecting the cone with a ball centered at the origin.Comment: To appear in ...
Baer, Eric, Figalli, Alessio
core   +1 more source

Sharp isoperimetric inequalities via the ABP [PDF]

open access: yes, 2016
Given an arbitrary convex cone of Rn, we find a geometric class of homogeneous weights for which balls centered at the origin and intersected with the cone are minimizers of the weighted isoperimetric problem in the convex cone.
Cabré Vilagut, Xavier   +2 more
core   +2 more sources

Extensions of convex functionals on convex cones [PDF]

open access: yesApplicationes Mathematicae, 1998
Summary: We prove that under some topological assumptions (e.g. if \(M\) has nonempty interior in \(X\)), a convex cone \(M\) in a linear topological space \(X\) is a linear subspace if and only if each convex functional on \(M\) has a convex extension on the whole space \(X\).
Ignaczak, E., Paszkiewicz, A.
openaire   +2 more sources

Optimal Integration of Flexible Alternating Current Transmission Systems in Electrical Distribution Grids Using a Mixed-Integer Convex Model

open access: yesAlgorithms, 2023
This research addresses the efficient integration and sizing of flexible alternating current transmission systems (FACTS) in electrical distribution networks via a convex optimization approach.
Walter Gil-González   +2 more
doaj   +1 more source

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