Solar Graph Pinhole
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A Man Constructing a Pinhole Camera $79.99 A Man Constructing a Pinhole Camera - Premium Photographic Print |
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GRAPH CALCLTR W/USB $84.99 GRAPH CALCLTR W/USB |
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Graph Tech Ghost Quickswitch $24.99 Graph Tech GHOST QuickSwitch |
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Board,Birthday Graph,Col $7.99 BOARD,BIRTHDAY GRAPH,COL |
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Shrikhande Graph $71.7 High Quality Content by WIKIPEDIA articles In the mathematical field of graph theory, the Shrikhande graph is a named graph discovered by S. S. Shrikhande in 1959. It is a strongly regular graph with 16 vertices and 48 edges, with each vertex having a degree of 6. In the Shrikhande graph, any two vertices I and J have two distinct neighbors in common (excluding the two vertices I and J themselves), which holds true whether or not I is adjacent to J. In other words, its parameters for being strongly regular are: {16,6,2,2}, with = = 2, this equality implying that the graph is associated with a symmetric BIBD. It shares these parameters with a different graph, the 4x4 rooks graph. The Shrikhande graph is locally hexagonal; that is, the neighbors of each vertex form a cycle of six vertices. As with any locally cyclic graph, the Shrikhande graph is the 1skeleton of a Whitney triangulation of some surface; in the case of the Shrikhande graph, this surface is a torus in which each vertex is surrounded by six triangles. Thus, the Shrikhande graph is a toroidal graph. The dual of this embedding is the Dyck graph, a cubic symmetric graph. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 102 Publication Date: 2010/08/11 Language: English Dimensions: 6.00 x 9.02 x 0.24 inches |
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Ordered Graph $58.94 High Quality Content by WIKIPEDIA articles An ordered graph is a graph with a total order over its nodes.The induced graph of an ordered graph is obtained by adding some edges to an ordering graph, using the method outlined below. The induced width of an ordered graph is the width of its induced graph. Given an ordered graph, its induced graph is another ordered graph obtained by joining some pairs of nodes that are both parents of another node. In particular, nodes are considered in turn according to the ordering, from last to first. For each node, if two of its parents are not joined by an edge, that edge is added. In other words, when considering node n, if both m and l are parents of it and are not joined by an edge, the edge (m, l) is added to the graph. Since the parents of a node are always connected with each other, the induced graph is always chordal. As an example, the induced graph of an ordered graph is calculated Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 66 Publication Date: 2010/08/17 Language: English Dimensions: 6.00 x 9.02 x 0.16 inches |
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Hulk Hogan Closeup graph $209.99 Hulk Hogan Closeup graph - Photo |
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Man in Front of Graph $24.99 Man in Front of Graph - Photographic Print |
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A Crystal Ball with a Graph $19.99 A Crystal Ball with a Graph - Premium Poster |
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Solar $124.99 Solar - Laminated Oversized Art |
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Robertson Graph $70.1 High Quality Content by WIKIPEDIA articles In the mathematical field of graph theory, the Robertson graph or (4,5)cage is a 4regular undirected graph with 19 vertices and 38 edges named after Neil Robertson. The Robertson graph is the unique (4,5)cage graph and was discovered by Robertson in 1964. As a cage graph, it is the smallest 4regular graph with girth 5. It has chromatic number 3, chromatic index 5, diameter 3, radius 3 and is both 4vertexconnected and 4edgeconnected. The Robertson graph is also a Hamiltonian graph which possesses 5,376 distinct directed Hamiltonian cycles. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 90 Publication Date: 2010/08/15 Language: English Dimensions: 6.00 x 9.02 x 0.22 inches |
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Covert Alarm Clock Dvr Pinhole Spy Camera $290.99 COVERT ALARM CLOCK DVR PINHOLE SPY CAMERA |
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Complete Graph $93.99 High Quality Content by WIKIPEDIA articles In the mathematical field of graph theory, a complete graph is a simple graph in which every pair of distinct vertices is connected by an edge. The complete graph on n vertices has n vertices and n(n1)/2 edges, and is denoted by (from the German komplett). It is a regular graph of degree . All complete graphs are their own cliques. They are maximally connected as the only vertex cut which disconnects the graph is the complete set of vertices. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 128 Publication Date: 2010/07/30 Language: English Dimensions: 5.98 x 9.01 x 0.30 inches |
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Toroidal Graph $70.1 High Quality Content by WIKIPEDIA articles In mathematics, a graph G is toroidal if it can be embedded on the torus. In other words, the graphs vertices can be placed on a torus such that no edges cross. Usually, it is assumed that G is also nonplanar.The Heawood graph, the complete graph K7 (and hence K5 and K6), the Petersen graph (and hence the complete bipartite graph K3,3, since the Petersen graph contains a subdivision of it), the Blanu a snarks, (Orbani et al. 2004) and all Mobius ladders are toroidal. More generally, any graph with crossing number 1 is toroidal. Some graphs with greater crossing numbers are also toroidal: the MobiusKantor graph, for example, has crossing number 4 and is toroidal (Maru i Pisanski 2000). Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 90 Publication Date: 2010/08/14 Language: English Dimensions: 6.00 x 9.02 x 0.22 inches |
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Graph Drawing $92.4 High Quality Content by WIKIPEDIA articles Graph drawing or Graph layout, as a branch of graph theory, applies topology and geometry to derive twodimensional representations of graphs. A drawing of a graph is basically a pictorial representation of an embedding of the graph in the plane, usually aimed at a convenient visualization of certain properties of the graph in question or of the object modeled by the graph. Graph drawing is motivated by applications such as VLSI circuit design, social network analysis, cartography, and bioinformatics, many of which make use of information visualization. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 136 Publication Date: 2010/08/15 Language: English Dimensions: 6.00 x 9.02 x 0.32 inches |
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Lattice Graph $68.51 High Quality Content by WIKIPEDIA articles The terms lattice graph, mesh graph, or grid graph refer to a number of categories of graphs whose drawing corresponds to some grid/mesh/lattice, i.e., its vertices correspond to the nodes of the mesh and its edges correspond to the ties between the nodes. A common type of a lattice graph (known under different names, such as square grid graph) is the graph whose vertices correspond to the points in the plane with integer coordinates, xcoordinates being in the range 0, ..., n, ycoordinates being in the range 1, ...m, and two vertices are connected by an edge whenever the corresponding points are at distance 1. In other words, it is a unit distance graph for the described point se Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 80 Publication Date: 2010/08/21 Language: English Dimensions: 6.00 x 9.02 x 0.19 inches |
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ClawFree Graph $62.13 In graph theory, an area of mathematics, a clawfree graph is a graph that does not have a claw as an induced subgraph. A claw is another name for the complete bipartite graph K1,3 (that is, a star graph with three edges, three leaves, and one central vertex). A clawfree graph is a graph in which no induced subgraph is a claw; i.e., any subset of four vertices has other than only three edges connecting them in this pattern. Equivalently, a clawfree graph is a graph in which the neighborhood of any vertex is the complement of a trianglefree graph. Clawfree graphs were initially studied as a generalization of line graphs, and gained additional motivation through three key discoveries about them: the fact that all such graphs have perfect matchings, the discovery of polynomial time algorithms for finding maximum independent sets in claw free graphs, and the characterization of clawfree perfect graphs. They are the subject of hundreds of mathematical research papers and several surveys. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2010/04/24 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches |
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Wheel Graph $60.54 High Quality Content by WIKIPEDIA articles In the mathematical discipline of graph theory, a wheel graph Wn is a graph with n vertices, formed by connecting a single vertex to all vertices of an (n1)cycle. The numerical notation for wheels is used inconsistently in the literature: some authors instead use n to refer to the length of the cycle, so that their Wn is the graph we denote Wn+1. A wheel graph can also be defined as the 1skeleton of an (n1)gonal pyramid. Wheel graphs are planar graphs, and as such have a unique planar embedding. More specifically, every wheel graph is a Halin graph. They are selfdual: the planar dual of any wheel graph is an isomorphic graph. Any maximal planar graph, other than K4 = W4, contains as a subgraph either W5 or W6. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 70 Publication Date: 2010/08/12 Language: English Dimensions: 6.00 x 9.02 x 0.17 inches |
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Rooks Graph $60.54 High Quality Content by WIKIPEDIA articles Rooks graphs are vertextransitive and (n + m 2)regular; they are the only regular graphs formed from the moves of standard chess pieces in this way (Elkies). When m n, the symmetries of the rooks graph are formed by independently permuting the rows and columns of the graph. When n = m the graph has additional symmetries that swap the rows and columns; the rooks graph for a square chessboard is symmetric. Any two vertices in a rooks graph are either at distance one or two from each other, according to whether they are adjacent or nonadjacent respectively. Any two nonadjacent vertices may be transformed into any other two nonadjacent vertices by a symmetry of the graph. When the rooks graph is not square, the pairs of adjacent vertices fall into two orbits of the symmetry group according to whether they are adjacent horizontally or vertically, but when the graph is square any two adjacent vertices may also be mapped into each other by a symmetry and the graph is therefore distancetransitive. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 70 Publication Date: 2010/08/11 Language: English Dimensions: 6.00 x 9.02 x 0.17 inches |
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Signed Graph $70.1 High Quality Content by WIKIPEDIA articles In the area of graph theory in mathematics, a signed graph is a graph in which each edge has a positive or negative sign. Formally, a signed graph is a pair (G, ) that consists of a graph G = (V, E) and a sign mapping or signature from E to the sign group {+, }. The graph may have loops and multiple edges as well as halfedges (with only one endpoint) and loose edges (with no endpoints). Half and loose edges do not receive signs. (In the terminology of the article on graphs, it is a multigraph, but we say graph because in signed graph theory it is usually unnatural to restrict to simple graphs.) The sign of a circle (this is the edge set of a simple cycle) is defined to be the product of the signs of its edges; in other words, a circle is positive if it contains an even number of negative edges and negative if it contains an odd number of negative edges. The fundamental fact about a signed graph is the list of positive circles, which we write B( ). Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 90 Publication Date: 2010/08/12 Language: English Dimensions: 6.00 x 9.02 x 0.22 inches |
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Coates Graph $81.25 High Quality Content by WIKIPEDIA articles In mathematics, the Coates graph or Coates flow graph, named after C.L. Coates, is a graph associated with the Coates method for the solution of a system of linear equations. The Coates graph Gc(A) associated with an n x n matrix A is an nnode, weighted, labeled, directed graph. The nodes, labeled 1 through n, are each associated with the corresponding row/column of A. If entry aji 0 then there is a directed edge from node i to node j with weight aji. In other words, the Coates graph for matrix A is the one whose adjacency matrix is the transpose of A. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 122 Publication Date: 2010/08/09 Language: English Dimensions: 6.00 x 9.02 x 0.29 inches |
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Engineer Watching Graph of Radioactivity $79.99 Engineer Watching Graph of Radioactivity - Premium Photographic Print |
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Graph of Tree and Roots $19.99 Colin Anderson Graph of Tree and Roots - Photographic Print |
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Graph Tech Supercharger Acoustic Kit A $27.99 Graph Tech Supercharger Acoustic Kit A |
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Graph (Mathematics) $81.25 In mathematics, a graph is an abstract representation of a set of objects where some pairs of the objects are connected by links. The interconnected objects are represented by mathematical abstractions called vertices, and the links that connect some pairs of vertices are called edges. Typically, a graph is depicted in diagrammatic form as a set of dots for the vertices, joined by lines or curves for the edges. For example, a graph may be constructed by choosing the vertices to be the first 1000 positive integers, and defining that there is an edge between two vertices if and only if those two integers have at least one decimal digit in common. In other cases the relationship between vertices is not symmetric: for example, a graph may be constructed by choosing the vertices to be the first 1000 positive integers, and defining that there is an edge from i to j if i is a divisor of j. This type of graph is called a directed graph and the edges are called directed edges or arcs; in contrast, a graph where the edges are not directed is called undirected. Vertices are also called nodes or points, and edges are also called lines. Graphs are the basic subject studied by graph theory. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 96 Publication Date: 2009/11/23 Language: English Dimensions: 5.98 x 9.01 x 0.22 inches |
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Visibility Graph $82.85 High Quality Content by WIKIPEDIA articles In computational geometry and robot motion planning, a visibility graph is a graph of intervisible locations, typically for a set of points and obstacles in the Euclidean plane. Each node in the graph represents a point location, and each edge represents a visible connection between them. That is, if the line segment connecting two locations does not pass through any obstacle, an edge is drawn between them in the graph. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 126 Publication Date: 2010/08/04 Language: English Dimensions: 6.00 x 9.02 x 0.30 inches |
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Graph Theory $66.91 In mathematics and computer science, graph theory is the study of graphs: mathematical structures used to model pairwise relations between objects from a certain collection. A graph in this context refers to a collection of vertices or nodes and a collection of edges that connect pairs of vertices. A graph may be undirected, meaning that there is no distinction between the two vertices associated with each edge or its edges may be directed from one vertex to another; see graph (mathematics) for more detailed definitions and for other variations in the types of graphs that are commonly considered. The graphs studied in graph theory should not be confused with graphs of functions and other kinds of graphs. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 70 Publication Date: 2010/01/13 Language: English Dimensions: 5.98 x 9.01 x 0.16 inches |
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