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Graph representing connectivity between cliques of another graph
In graph theory, a branch of mathematics, the simplex graph κ(G) of an undirected graph G is itself a graph, with one node for each clique (a set of mutually
Simplex_graph
Algorithm in graph theory
In mathematical optimization, the network simplex algorithm is a graph theoretic specialization of the simplex algorithm. The algorithm is usually formulated
Network_simplex_algorithm
Procedures for constructing new graphs in graph theory
dual graph; medial graph; quotient graph; double graph; simplex graph; YΔ- and ΔY-transformation; Mycielskian. Binary operations create a new graph from
Graph_operations
Topics referred to by the same term
problems Simplex graph, derived from the cliques of another graph Simplex noise, a method for constructing an n-dimensional noise function Simplex plot,
Simplex_(disambiguation)
Adjacent subset of an undirected graph
complex of a graph G is an abstract simplicial complex X(G) with a simplex for every clique in G A simplex graph is an undirected graph κ(G) with a vertex
Clique_(graph_theory)
Graph in which every two vertices are adjacent
The simplex, which is identical to a complete graph of n + 1 {\displaystyle n+1} vertices, where n {\displaystyle n} is the dimension of the simplex. Bang-Jensen
Complete_graph
Multi-dimensional generalization of triangle
0-dimensional simplex is a point, a 1-dimensional simplex is a line segment, a 2-dimensional simplex is a triangle, a 3-dimensional simplex is a tetrahedron
Simplex
Graph with a median for each three vertices
subclass of the median graphs. A polyomino is a special case of a squaregraph and therefore also forms a median graph. The simplex graph κ ( G ) {\displaystyle
Median_graph
Topics referred to by the same term
graph, the intersection graph of maximal cliques Simplex graph, a graph with a vertex for each clique in the original graph, with an edge between vertices
Clique_graph_(disambiguation)
Algorithm for linear programming
Dantzig's simplex algorithm (or simplex method) is an algorithm for linear programming. The name of the algorithm is derived from the concept of a simplex and
Simplex_algorithm
edge graph of a convex polytope is a finite simple graph. It is connected, since a path between any two vertices can be obtained from the simplex algorithm
Graph_of_a_polytope
Planar graph with quadrilateral faces
(the simplex graph of K3), the Cartesian product of an edge and a claw K1,3 (the simplex graph of a claw), and the graphs formed from a gear graph by adding
Squaregraph
Tiling of n-dimensional space
it is called the 5-simplex honeycomb, with Coxeter graph , filling space by 5-simplex, rectified 5-simplex, and birectified 5-simplex facets. In 6 dimensions
Simplicial_honeycomb
Abstract simplicial complex describing a graph's cliques
represented by a simplex of dimension k – 1. The 1-skeleton of X(G) (also known as the underlying graph of the complex) is an undirected graph with a vertex
Clique_complex
Family of graphs based on the Fibonacci sequence
representations. The Fibonacci cube of order n is the simplex graph of the complement graph of an n-vertex path graph. That is, each vertex in the Fibonacci cube
Fibonacci_cube
Numerical optimization algorithm
The Nelder–Mead method (also downhill simplex method, amoeba method, or polytope method) is a numerical method used to find a local minimum or maximum
Nelder–Mead_method
Uniform 6-polytope
Lie group A6. It is the vertex figure of the 6-simplex honeycomb. Note: (*) Symmetry doubled for Ak graphs with even k due to symmetrically-ringed Coxeter-Dynkin
Pentellated_6-simplexes
Type of 7-polytope
geometry, a hexicated 7-simplex is a convex uniform 7-polytope, including 6th-order truncations (hexication) from the regular 7-simplex. There are 20 unique
Hexicated_7-simplexes
a runcinated 6-simplex is a convex uniform 6-polytope constructed as a runcination (3rd order truncations) of the regular 6-simplex. There are 8 unique
Runcinated_6-simplexes
Method to solve optimization problems
Are there pivot rules which lead to polynomial-time simplex variants? Do all polytopal graphs have polynomially bounded diameter? These questions relate
Linear_programming
Barycentric plot on three variables
A ternary plot, ternary graph, triangle plot, simplex plot, or Gibbs triangle is a barycentric plot on three variables which sum to a constant. It graphically
Ternary_plot
Solid with eight equal triangular faces
octahedron give rise to a graph, a discrete structure drawn in a plane. The name is octahedral graph. The octahedral graph is an example of a four-connected
Regular_octahedron
Four-dimensional analogue of the cube
The dissection of the tesseract into instances of its characteristic simplex (a particular orthoscheme with Coxeter diagram ) is the most basic direct
Tesseract
geometry, a stericated 7-simplex is a convex uniform 7-polytope with 4th order truncations (sterication) of the regular 7-simplex. There are 14 unique sterication
Stericated_7-simplexes
Seven-dimensional geometric object
There are exactly three such convex regular 7-polytopes: {3,3,3,3,3,3} - 7-simplex {4,3,3,3,3,3} - 7-cube {3,3,3,3,3,4} - 7-orthoplex There are no nonconvex
Uniform_7-polytope
Class of eight-dimensional polytopes
geometry, a stericated 8-simplex is a convex uniform 8-polytope with 4th order truncations (sterication) of the regular 8-simplex. There are 16 unique sterications
Stericated_8-simplexes
Topological space formed from distances
its 1-skeleton is the unit disk graph of its points. It contains a simplex for every clique in the unit disk graph, so it is the clique complex or flag
Vietoris–Rips_complex
Linear programming algorithm
optimization, the revised simplex method is a variant of George Dantzig's simplex method for linear programming. The revised simplex method is mathematically
Revised_simplex_method
Computer compiler optimization technique
register allocation), or across function boundaries traversed via call-graph (interprocedural register allocation). When done per function/procedure
Register_allocation
Coxeter-Dynkin diagram as a cyclic graph of n+1 nodes with two adjacent nodes ringed. It is composed of n-simplex facets, along with all truncated n-simplices
Cyclotruncated simplicial honeycomb
Cyclotruncated_simplicial_honeycomb
Abstract regular polyhedron with 10 triangular faces
5-dimensional 5-simplex which has a complete graph of edges, but only contains half of the (20) faces. From the point of view of graph theory this is an
Hemi-icosahedron
Mathematical optimization problem restricted to integers
nearest integers, it is not feasible for the ILP. See projection into simplex The following is a reduction from minimum vertex cover to integer programming
Integer_programming
Generalization of graph theory
hypergraph is a generalization of a graph in which an edge can join any number of vertices. In contrast, in an ordinary graph, an edge connects exactly two
Hypergraph
Method of solving linear programming problems
solving linear programming problems using the simplex algorithm. The Big M method extends the simplex algorithm to problems that contain "greater-than"
Big_M_method
Study of mathematical algorithms for optimization problems
discrete optimization, in which an object such as an integer, permutation or graph must be found from a countable set. A problem with continuous variables
Mathematical_optimization
Algorithms for solving convex optimization problems
polynomial—in contrast to the simplex method, which has exponential run-time in the worst case. Practically, they run as fast as the simplex method—in contrast to
Interior-point_method
Balanced complete multipartite graph
formed by embedding a Turán graph onto the vertices of a regular simplex. An n-vertex graph G is a subgraph of a Turán graph T(n,r) if and only if G admits
Turán_graph
Solid with twenty equal triangular faces
is an example of a Platonic solid and of a deltahedron. The icosahedral graph represents the skeleton of a regular icosahedron. Many polyhedra and other
Regular_icosahedron
geometry, a stericated 6-simplex is a convex uniform 6-polytope with 4th order truncations (sterication) of the regular 6-simplex. There are 8 unique sterications
Stericated_6-simplexes
Fixed-point theorem for set-valued functions
set-valued function on S with the following properties: φ has a closed graph; φ(x) is non-empty and convex for all x ∈ S. Then φ has a fixed point. Set-valued
Kakutani_fixed-point_theorem
Optimization algorithm
of algorithms that solve convex problems by hill-climbing include the simplex algorithm for linear programming and binary search. To attempt to avoid
Hill_climbing
Natural number
vertices a polyhedron can have. The regular tetrahedron, also called a 3-simplex, is the simplest Platonic solid. It has four regular triangles as faces
4
{\displaystyle \Delta _{d,k}} is a convex polytope that generalizes the simplex. It is determined by two integers d {\displaystyle d} and k {\displaystyle
Hypersimplex
Sequence of locally optimal choices
table. Graph theory is a rich source of greedy algorithms. Computing scientists frequently use greedy algorithms frequently to compute graph invariants
Greedy_algorithm
Archimedean solid with 8 faces
World Cup. In the mathematical field of graph theory, a truncated tetrahedral graph is an Archimedean graph, the graph of vertices and edges of the truncated
Truncated_tetrahedron
geometry, a runcinated 7-simplex is a convex uniform 7-polytope with 3rd order truncations (runcination) of the regular 7-simplex. There are 8 unique runcinations
Runcinated_7-simplexes
Problem optimization method
substructures are usually described by means of recursion. For example, given a graph G=(V,E), the shortest path p from a vertex u to a vertex v exhibits optimal
Dynamic_programming
Graphical technique for data sets
Star plot Surface plot Ternary plot : A ternary plot, ternary graph, triangle plot, simplex plot, or de Finetti diagram is a barycentric plot on three variables
Plot_(graphics)
Theorem on triangulation graph colorings
particular, there must be at least one rainbow simplex. We shall first address the two-dimensional case. Consider a graph G built from the triangulation T as follows:
Sperner's_lemma
Shape with nine sides
represents an orthographic projection of the 9 vertices and 36 edges of the 8-simplex. Temples of the Baháʼí Faith, called Baháʼí Houses of Worship, are required
Nonagon
Branch of discrete mathematics
right. One of the oldest and most accessible parts of combinatorics is graph theory, which by itself has numerous natural connections to other areas
Combinatorics
polytope is a polytope formed from a simplex by repeatedly gluing another simplex onto one of its facets. Every simplex is itself a stacked polytope. In three
Stacked_polytope
Polytope in 8-dimensional geometry
rings in this Coxeter-Dynkin diagram: . The 421 polytope has 17,280 7-simplex and 2,160 7-orthoplex facets, and 240 vertices. Its vertex figure is the
4_21_polytope
runcinations of the 8-simplex, including permutations of truncation and cantellation. The triruncinated 8-simplex and triruncicantitruncated 8-simplex have a doubled
Runcinated_8-simplexes
Algorithm used to solve non-linear least squares problems
b=102} used in the initial curve. Only when the parameters in the last graph are chosen closest to the original, are the curves fitting exactly. This
Levenberg–Marquardt_algorithm
Δk correspond to non-equivalent marked metric graph structures on Fn. The set j(Δk) is called open simplex in Xn corresponding to f and is denoted S(f)
Outer_space_(mathematics)
7-dimensional hypercube
infinite family called demihypercubes), which has 14 demihexeractic and 64 6-simplex 6-faces. Coxeter, Regular Polytopes, p. 12, Sec. 1.8 Configurations Coxeter
7-cube
Mathematical object
vertices, but not any graph can be plotted in R 2 {\displaystyle \mathbb {R} ^{2}} in this way. If K is the standard combinatorial n-simplex, then | K | {\displaystyle
Abstract_simplicial_complex
Type of mathematical set
a maximal simplex, i.e., any simplex in a complex that is not a face of any larger simplex. (Note the difference from a "face" of a simplex). A pure simplicial
Simplicial_complex
Regular polytope dual to the hypercube in any number of dimensions
hypercube. The vertex-edge graph of an n-dimensional cross-polytope is the Turán graph T(2n, n) (also known as a cocktail party graph ). In 1 dimension the
Cross-polytope
Graph with at most one cycle per component
In graph theory, a pseudoforest is an undirected graph in which every connected component has at most one cycle. That is, it is a system of vertices and
Pseudoforest
6-simplex are located as pairs on the edge of the 6-simplex. Vertices of the bitruncated 6-simplex are located on the triangular faces of the 6-simplex
Truncated_6-simplexes
Convex polytope, the n-dimensional analogue of a square and a cube
of tesseract and 16-cell. The graph of the n-hypercube's edges is isomorphic to the Hasse diagram of the (n−1)-simplex's face lattice. This can be seen
Hypercube
graphically by a tetrahedral graph, which is in a dual configuration of the fundamental domain tetrahedron. In the graph, each node represents a face
Goursat_tetrahedron
Mathematical problem
question can be phrased in graph theoretic terms as follows. Let G be the unit distance graph of the plane: an infinite graph with all points of the plane
Hadwiger–Nelson_problem
Optimization algorithm
Khachiyan Projective algorithm of Karmarkar Basis-exchange Simplex algorithm of Dantzig Revised simplex algorithm Criss-cross algorithm Principal pivoting algorithm
Limited-memory_BFGS
Collective behavior of decentralized, self-organized systems
technique useful in problems that deal with finding better paths through graphs. Artificial 'ants'—simulation agents—locate optimal solutions by moving
Swarm_intelligence
Polyhedron with 8 triangles and 6 squares
positions. The graph of a cuboctahedron may be constructed as the line graph of the cubical graph, making it becomes the locally linear graph. The 24 edges
Cuboctahedron
On lengths of shortest paths in convex polytopes
combinatorics, the Hirsch conjecture is the statement that the edge-vertex graph of an n-facet polytope in d-dimensional Euclidean space has diameter no
Hirsch_conjecture
Sequential model-based optimization of expensive black-box functions
Khachiyan Projective algorithm of Karmarkar Basis-exchange Simplex algorithm of Dantzig Revised simplex algorithm Criss-cross algorithm Principal pivoting algorithm
Bayesian_optimization
Subfield of mathematical optimization
particular measure m 0 {\displaystyle m_{0}} . For example, if there is a graph G {\displaystyle G} which contains vertices u {\displaystyle u} and v {\displaystyle
Combinatorial_optimization
Four-dimensional analogue of the tetrahedron
hypertetrahedron, pentachoron, pentatope, pentahedroid, tetrahedral pyramid, or 4-simplex (Coxeter's α4 polytope), the simplest possible convex 4-polytope, and is
5-cell
branches: 621, 261, 162. The 621 honeycomb is constructed from alternating 9-simplex and 9-orthoplex facets within the symmetry of the E10 Coxeter group. This
E9_honeycomb
Polyhedron with four faces
three-dimensional case of the more general concept of a Euclidean simplex, and may thus also be called a 3-simplex. The tetrahedron is one kind of pyramid, which is a
Tetrahedron
Optimization algorithm
computational problems that can be reduced to finding good paths through graphs. Artificial ants represent multi-agent methods inspired by the behavior
Ant colony optimization algorithms
Ant_colony_optimization_algorithms
Optimization technique
1965: Matyas proposes random optimization. 1965: Nelder and Mead propose a simplex heuristic, which was shown by Powell to converge to non-stationary points
Metaheuristic
Optimization algorithm
f {\displaystyle f} is assumed to be defined on the plane, and that its graph has a bowl shape. The blue curves are the contour lines, that is, the regions
Gradient_descent
Solving an optimization problem with a quadratic objective function
Lagrangian, conjugate gradient, gradient projection, extensions of the simplex algorithm. In the case in which Q is positive definite, the problem is
Quadratic_programming
simplicial complex is a generalization of the neighborhood of a vertex in a graph. The link of a vertex encodes information about the local structure of the
Link_(simplicial_complex)
Optimization method
Khachiyan Projective algorithm of Karmarkar Basis-exchange Simplex algorithm of Dantzig Revised simplex algorithm Criss-cross algorithm Principal pivoting algorithm
Broyden–Fletcher–Goldfarb–Shanno algorithm
Broyden–Fletcher–Goldfarb–Shanno_algorithm
Algorithm for computing the maximal flow of a network
shortest augmenting paths. The introduction of the concepts of the level graph and blocking flow enable Dinic's algorithm to achieve its performance. Dinitz
Dinic's_algorithm
Discrete (i.e., incremental) version of infinitesimal calculus
and σi is an oriented k-simplex. In this definition, we declare that each oriented simplex is equal to the negative of the simplex with the opposite orientation
Discrete_calculus
Graph-theoretic description of polyhedra
planar graph, and every 3-connected planar graph can be represented as the graph of a convex polyhedron. For this reason, the 3-connected planar graphs are
Steinitz's_theorem
Local search algorithm
solutions. To obtain good TSP solutions, it is essential to exploit the graph structure. The value of exploiting problem structure is a recurring theme
Tabu_search
Regular 5-polytope
In five-dimensional geometry, a 5-simplex is a self-dual regular 5-polytope. It has six vertices, 15 edges, 20 triangle faces, 15 tetrahedral cells, and
5-simplex
Tessellation of convex uniform polyhedron cells
represent a mirror removal operation. If an end-node is removed, another simplex (tetrahedral) family is generated. If a hole has two branches, a Vinberg
Paracompact uniform honeycombs
Paracompact_uniform_honeycombs
(n+1)} -simplex. ∂ Δ n + 1 {\displaystyle \partial \Delta _{n+1}} is a combinatorial n-sphere with its triangulation as the boundary of the n+1-simplex. Given
Pachner_moves
geometry, a stericated 5-simplex is a convex uniform 5-polytope with fourth-order truncations (sterication) of the regular 5-simplex. There are six unique
Stericated_5-simplexes
Shape with six sides
5-polytope 5-simplex 5-orthoplex • 5-cube 5-demicube Uniform 6-polytope 6-simplex 6-orthoplex • 6-cube 6-demicube 122 • 221 Uniform 7-polytope 7-simplex 7-orthoplex
Hexagon
Subfield of convex optimization
David P. Williamson (JACM, 1995). They studied the max cut problem: Given a graph G = (V, E), output a partition of the vertices V so as to maximize the number
Semidefinite_programming
Class of algorithms for solving constrained optimization problems
Khachiyan Projective algorithm of Karmarkar Basis-exchange Simplex algorithm of Dantzig Revised simplex algorithm Criss-cross algorithm Principal pivoting algorithm
Augmented_Lagrangian_method
5-dimensional hypercube
Bk Coxeter groups project into k-cube graphs, with power of two vertices overlapping in the projective graphs. The 5-cube can be projected down to 3
5-cube
Graph theory model
partial k-trees. The graphs formed by the edges and vertices of k-dimensional stacked polytopes, polytopes formed by starting from a simplex and then repeatedly
K-tree
Combinitorics of Polyhedra
not true. For simplicial polytopes (polytopes in which every facet is a simplex), it is often convenient to transform these vectors, producing a different
Polyhedral_combinatorics
Optimizing objective functions that have constrained variables
the problem is a linear programming problem. This can be solved by the simplex method, which usually works in polynomial time in the problem size but
Constrained_optimization
Abstraction of ordered linear algebra
matroid is a mathematical structure that abstracts the properties of directed graphs, vector arrangements over ordered fields, and hyperplane arrangements over
Oriented_matroid
Class of algorithms that find approximate solutions to optimization problems
remove all edges incident to either vertex from the graph. As any vertex cover of the input graph must use a distinct vertex to cover each edge that was
Approximation_algorithm
Uniform 7-dimensional polytope
projection. The 1-skeleton of the 321 polytope is the Gosset graph. This polytope, along with the 7-simplex, can tessellate 7-dimensional space, represented by
3_21_polytope
Isometric subgraph of a hypercube
median graphs are partial cubes. The trees and hypercube graphs are examples of median graphs. Since the median graphs include the squaregraphs, simplex graphs
Partial_cube
Algorithms to complete a sudoku
to a solution quickly, and can then use branching towards the end. The simplex algorithm is able to solve proper Sudokus, indicating if the Sudoku is
Sudoku_solving_algorithms
SIMPLEX GRAPH
SIMPLEX GRAPH
Boy/Male
Anglo Saxon
Simple.
Boy/Male
Shakespearean
The Merry Wives of Windsor' Servant to Slender.
Boy/Male
Tamil
Simple
Boy/Male
Gujarati, Hindu, Indian
Simple
Girl/Female
Gujarati, Hindu, Indian
Simple
Boy/Male
Indian
Simple
Girl/Female
Hindu, Indian, Marathi
Simple
Girl/Female
Indian
Simple.
Boy/Male
Hindu, Indian
Simple
Girl/Female
Gujarati, Indian, Sanskrit
Simple
Boy/Male
Gujarati, Hindu, Indian
Simple
Boy/Male
Shakespearean
Henry VI, Part 2' Saunder Simpcox, an impostor.
Surname or Lastname
English (mainly Nottinghamshire)
English (mainly Nottinghamshire) : unexplained; probably a variant of Sample.
Boy/Male
Sikh
Simple
Girl/Female
Hindu, Indian
Cute
Girl/Female
Hindu, Indian, Telugu
Simple
Girl/Female
Hindu, Indian
Simple
Girl/Female
British, English, Latin, Newzealand
Simple
Girl/Female
American, Assamese, British, Celebrity, English, Gujarati, Hindu, Indian, Kannada, Malayalam, Sindhi, Telugu
A Small; Natural Hollow on the Surface of the Body; Happy; Dimples
Boy/Male
Indian
Simple
SIMPLEX GRAPH
SIMPLEX GRAPH
Male
Greek
(Ἰωήλ) Greek form of Hebrew Yowel, IOEL means "Jehovah is God" or "to whom Jehovah is God." In the bible, this is the name of one of the minor prophets. Joel is the Anglicized form.
Male
English
Anglicized form of Gaelic Alaster, ALLASTER means "defender of mankind."
Boy/Male
Hindu, Indian, Sanskrit
Beautiful; Auspicious; Blessed
Girl/Female
Arabic, Muslim
Wild Cow; Gazelle; Large Eyes
Girl/Female
Indian, Sanskrit
Night
Boy/Male
Scottish
Derived from the name Gilbride, meaning 'servant of St. Bridget'.
Boy/Male
Tamil
A pet name for girl child
Boy/Male
Hindu, Indian, Marathi
The Sun
Girl/Female
Latin
First.
Girl/Female
Indian
Lover; Voice of Sweet Bird
SIMPLEX GRAPH
SIMPLEX GRAPH
SIMPLEX GRAPH
SIMPLEX GRAPH
SIMPLEX GRAPH
imp. & p. p.
of Rimple
a.
Single; not complex; not infolded or entangled; uncombined; not compounded; not blended with something else; not complicated; as, a simple substance; a simple idea; a simple sound; a simple machine; a simple problem; simple tasks.
a.
Not capable of being decomposed into anything more simple or ultimate by any means at present known; elementary; thus, atoms are regarded as simple bodies. Cf. Ultimate, a.
a.
Intricate; entangled; complicated; complex.
a.
Not luxurious; without much variety; plain; as, a simple diet; a simple way of living.
imp. & p. p.
of Dimple
a.
Consisting of a single individual or zooid; as, a simple ascidian; -- opposed to compound.
n.
One who collects simples, or medicinal plants; a herbalist; a simplist.
a.
Plain; unadorned; as, simple dress.
n.
One who makes up samples for inspection; one who examines samples, or by samples; as, a wool sampler.
imp. & p. p.
of Wimple
pl.
of Simile
a.
Without subdivisions; entire; as, a simple stem; a simple leaf.
v. i.
To gather simples, or medicinal plants.
a.
Direct; clear; intelligible; not abstruse or enigmatical; as, a simple statement; simple language.
a.
Not complex; uncompounded; simple.
n.
Composed of two or more parts; composite; not simple; as, a complex being; a complex idea.
a.
Having pimples.
n.
One skilled in simples, or medicinal plants; a simpler.
v. t.
To take or to test a sample or samples of; as, to sample sugar, teas, wools, cloths.