Results 51 to 60 of about 6,795,119 (352)

Known Results and Open Problems in Hypercomplex Convexity

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
A subject, which is treated in this review, combines in one bundle some questions of convex, hypercomplex analysis, probability theory and geometry.
Zelinskii Yuri
doaj   +1 more source

Guarding curvilinear art galleries with edge or mobile guards via 2-dominance of triangulation graphs [PDF]

open access: yes, 2010
In this paper we consider the problem of monitoring an art gallery modeled as a polygon, the edges of which are arcs of curves, with edge or mobile guards. Our focus is on piecewise-convex polygons, i.e., polygons that are locally convex, except possibly
Avis   +20 more
core   +2 more sources

About Directed d-Convex Simple Graphs [PDF]

open access: yesComputer Science Journal of Moldova, 2008
In this article we introduce a pseudo-metric on directed graphs, which forms there a family of convex sets. The graphs without d-convex sets, except empty set, sets of one vertex and set of all vertexes, are called d-convex simple.
Nadejda Sur, Sergiu Cataranciuc
doaj  

Computation of the Hausdorff Distance between Two Compact Convex Sets

open access: yesAlgorithms, 2023
The Hausdorff distance between two closed sets has important theoretical and practical applications. Yet apart from finite point clouds, there appear to be no generic algorithms for computing this quantity.
Kenneth Lange
doaj   +1 more source

Number of Spinal-Convex Polyominoes

open access: yesJournal of Kufa for Mathematics and Computer, 2020
In his paper we describe a restricted class of polyominoes called spinal-convex polyominoes. Spinal-convex polyominoes created by two columns such that column 1 (respectively, column2) with at most two set columns sequence of adjacent ominoes and column ...
Mustafa A. Sabri, Eman F. Mohomme
doaj   +1 more source

Weakly convex sets and modulus of nonconvexity [PDF]

open access: yes, 2010
We consider a definition of a weakly convex set which is a generalization of the notion of a weakly convex set in the sense of Vial and a proximally smooth set in the sense of Clarke, from the case of the Hilbert space to a class of Banach spaces with ...
Aubin   +20 more
core   +2 more sources

Dynamic Locomotion in the MIT Cheetah 3 Through Convex Model-Predictive Control

open access: yesIEEE/RJS International Conference on Intelligent RObots and Systems, 2018
This paper presents an implementation of model predictive control (MPC) to determine ground reaction forces for a torque-controlled quadruped robot. The robot dynamics are simplified to formulate the problem as convex optimization while still capturing ...
J. Carlo   +4 more
semanticscholar   +1 more source

Weak KAM aspects of convex Hamilton-Jacobi equations with Neumann type boundary conditions [PDF]

open access: yes, 2009
We establish the stability under the formations of infimum and of convex combinations of subsolutions of convex Hamilton-Jacobi equations, some comparison and existence results for convex and coercive Hamilton-Jacobi equations with the Neumann type ...
Bardi   +24 more
core   +2 more sources

Contractions of Convex Sets [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
In this paper it is shown that, in a vector space over any ordered field, a noninfinitesimal contraction of a convex set K can be written as an intersection of translates of K.
openaire   +1 more source

Three convex sets [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
We construct a Choquet simplex K K such that there is a universally measurable affine function f f on K K , which satisfies the barycentric calculus, and is zero on the set of extreme points, but is not identically zero.
openaire   +2 more sources

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