The dynamic convex hull problem is a class of dynamic problems in computational geometry. The problem consists in the maintenance, i.e., keeping track...
6 KB (769 words) - 22:54, 28 July 2024
In geometry, the convex hull, convex envelope or convex closure of a shape is the smallest convex set that contains it. The convex hull may be defined either...
58 KB (7,147 words) - 10:40, 31 May 2025
Algorithms that construct convex hulls of various objects have a broad range of applications in mathematics and computer science. In computational geometry...
17 KB (2,326 words) - 04:22, 2 May 2025
set of continuously moving points. It should be distinguished from dynamic convex hull data structures, which handle points undergoing discrete changes...
12 KB (1,934 words) - 20:41, 10 November 2022
and computational geometry, the relative convex hull or geodesic convex hull is an analogue of the convex hull for the points inside a simple polygon or...
9 KB (1,112 words) - 11:33, 27 May 2025
invocation yields a running time of Ω(n log n). Using (fully or semi-) dynamic convex hull data structures, the simplification performed by the algorithm can...
12 KB (1,191 words) - 17:56, 8 June 2025
Computational geometry (section Dynamic problems)
converted into the dynamic range searching problem by providing for addition and/or deletion of the points. The dynamic convex hull problem is to keep...
15 KB (2,106 words) - 15:15, 19 May 2025
C} is the convex hull of its extremal rays. For a vector space V {\displaystyle V} , every linear subspace of V {\displaystyle V} is a convex cone. In...
28 KB (3,941 words) - 12:49, 8 May 2025
is in convex position if all of the points are vertices of their convex hull. More generally, a family of convex sets is said to be in convex position...
5 KB (545 words) - 10:14, 18 December 2023
easier to analyze. There is also a heap-like structure based on the dynamic convex hull data structure which achieves better performance for affine motion...
6 KB (622 words) - 20:15, 2 February 2024
algorithm maintains a dynamic convex hull for the points on each side of a separating line, repeatedly finds a bitangent of these two hulls, and moves each...
16 KB (1,881 words) - 05:33, 9 November 2024
Non-convexity (economics) (redirect from Non-convex set (economics))
convex preferences (that do not prefer extremes to in-between values) and convex budget sets and on producers with convex production sets; for convex...
40 KB (4,102 words) - 14:24, 6 June 2025
any two points. The diameter is always attained by two points of the convex hull of the input. A trivial brute-force search can be used to find the diameter...
8 KB (982 words) - 19:33, 9 April 2025
maxima set problem, has been studied as a variant of the convex hull and orthogonal convex hull problems. It is equivalent to finding the Pareto frontier...
8 KB (941 words) - 06:22, 11 March 2024
Examples of convex curves include the convex polygons, the boundaries of convex sets, and the graphs of convex functions. Important subclasses of convex curves...
37 KB (4,174 words) - 06:39, 27 September 2024
pointed pseudotriangulation is a pseudotriangulation of its convex hull: all convex hull edges may be added while preserving the angle-spanning property...
20 KB (2,058 words) - 10:03, 14 March 2025
diameter. A kite with three 108° angles and one 36° angle forms the convex hull of the lute of Pythagoras, a fractal made of nested pentagrams. The four...
38 KB (3,800 words) - 16:41, 11 April 2025
K {\displaystyle K} is a convex set. When it is not convex but merely a connected set, it can be replaced by its convex hull without changing its opaque...
31 KB (4,100 words) - 00:25, 18 April 2025
Tight span (redirect from Hyperconvex hull)
to the convex hull of a point set in a Euclidean space. The tight span is also sometimes known as the injective envelope or hyperconvex hull of M. It...
21 KB (3,416 words) - 21:57, 8 April 2025
use. A convex hull is the smallest convex volume containing the object. If the object is the union of a finite set of points, its convex hull is a polytope...
15 KB (2,301 words) - 01:52, 2 June 2024
Cutting-plane method (section Convex optimization)
guaranteed to exist a linear inequality that separates the optimum from the convex hull of the true feasible set. Finding such an inequality is the separation...
10 KB (1,546 words) - 09:57, 10 December 2023
shown in red, and the red dashed lines indicate their convex hull, which is the smallest convex polyhedron that contains all of these points. The blue...
30 KB (4,226 words) - 23:17, 14 June 2025
balanced hull of H {\displaystyle H} is equicontinuous. the convex hull of H {\displaystyle H} is equicontinuous. the convex balanced hull of H {\displaystyle...
25 KB (3,769 words) - 16:00, 31 May 2025
length. A point-set triangulation is a polygon triangulation of the convex hull of a set of points. A Delaunay triangulation is another way to create...
13 KB (1,386 words) - 18:20, 13 April 2025
triangulation of minimal total edge length. That is, an input polygon or the convex hull of an input point set must be subdivided into triangles that meet edge-to-edge...
29 KB (3,289 words) - 12:57, 15 January 2024
of users, while the weighted max-min fairness utility results in a quasi-convex optimization problem with only a polynomial scaling with the number of users...
75 KB (9,566 words) - 14:50, 10 June 2025
optimal solution (xmin, f(xmin)) to the "convexified problem", where convex hulls are taken of the graphs of the summand functions. Such an optimal solution...
26 KB (2,261 words) - 09:41, 13 April 2025
The regular icosahedron (or simply icosahedron) is a convex polyhedron that can be constructed from pentagonal antiprism by attaching two pentagonal pyramids...
46 KB (4,617 words) - 15:19, 18 June 2025
a polygonalization is to choose any point q {\displaystyle q} in the convex hull of P {\displaystyle P} (not necessarily one of the given points). Then...
26 KB (2,758 words) - 07:28, 30 April 2025
Constantin Carathéodory (section Convex geometry)
\mathbb {R} ^{d}} lies in the convex hull of a set P {\displaystyle P} , then x {\displaystyle x} can be written as the convex combination of at most d +...
44 KB (4,926 words) - 14:47, 16 June 2025