A marked graph is a Petri net in which every place has exactly one incoming arc, and exactly one outgoing arc.: 561  This means, that there can not be...

In the area of graph theory in mathematics, a signed graph is a graph in which each edge has a positive or negative sign. A signed graph is balanced if...

An augmented marked graph is basically a Petri net with a specific set of places called resource places. If removing these resource places and their associated...

In graph theory, a bridge, isthmus, cut-edge, or cut arc is an edge of a graph whose deletion increases the graph's number of connected components. Equivalently...

computer science, graph traversal (also known as graph search) refers to the process of visiting (checking and/or updating) each vertex in a graph. Such traversals...

cartesian coordinate (rectangular) graph, and either a line graph or a bar graph. In polar form, the months of the year are marked around the circumference, forming...

In the mathematical theory of directed graphs, a graph is said to be strongly connected if every vertex is reachable from every other vertex. The strongly...

mathematical field of graph theory, the distance between two vertices in a graph is the number of edges in a shortest path (also called a graph geodesic) connecting...

an algorithm for finding the shortest paths between nodes in a weighted graph, which may represent, for example, a road network. It was conceived by computer...

mathematical field of graph theory, a quartic graph is a graph where all vertices have degree 4. In other words, a quartic graph is a 4-regular graph. Several well-known...

mathematical field of graph theory, the Erdős–Rényi model refers to one of two closely related models for generating random graphs or the evolution of a...

Vector Formula, Vector Rally, Vector Race, Graph Racers, PolyRace, Paper and pencil racing, or the Graph paper race game. The rules are here explained...

class of discrete event dynamic system. A Petri net is a directed bipartite graph that has two types of elements: places and transitions. Place elements are...

The following figure shows examples of edge coverings in two graphs (the set C is marked with red). A minimum edge covering is an edge covering of smallest...

mathematics, a queen's graph is an undirected graph that represents all legal moves of the queen—a chess piece—on a chessboard. In the graph, each vertex represents...

diameter problem for graphs of degree at most 3 ≤ d ≤ 16 and diameter 2 ≤ k ≤ 10. Only a few of the graphs in this table (marked in bold) are known to...

Trikonic, is a proposed method of philosophical analysis-synthesis. It is based on Charles Sanders Peirce's "trichotomic", which he described in 1888 as...

Congruence notation in geometry — as on a geometric figure Graphed points — as on a graph Hatch marks are frequently used as an abbreviation of some common...

zeros are the x {\displaystyle x} -coordinates of the points where its graph meets the x-axis. An alternative name for such a point ( x , 0 ) {\displaystyle...

planar graphs, blossom trees are trees with additional directed half edges. Each blossom tree is associated with an embedding of a planar graph. Blossom...

English Wikipedia (marked blue in the graph) is the most-read version of Wikipedia, accounting for 48% of the website's global traffic as of 2021....

In graph theory, a vertex cover (sometimes node cover) of a graph is a set of vertices that includes at least one endpoint of every edge of the graph. In...

This graph was using the legacy Graph extension, which is no longer supported. It needs to be converted to the new Chart extension....

joins points of equal value. It is a plane section of the three-dimensional graph of the function f ( x , y ) {\displaystyle f(x,y)} parallel to the ( x ...

pollutants are trapped in the valley by surrounding mountains. See or edit raw graph data. Winter temperatures are not as extreme as might be expected, given...

"perfect" mazes, and are equivalent to a tree in graph theory. Maze-solving algorithms are closely related to graph theory. Intuitively, if one pulled and stretched...

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...

Cartesian plane with marked points (signed ordered pairs of coordinates). For any point, the abscissa is the first value (x coordinate), and the ordinate...

A bond graph is a graphical representation of a physical dynamic system. It allows the conversion of the system into a state-space representation. It...

follows because, for n sufficiently large, the graph of f n {\displaystyle f_{n}} is within ε of the graph of f, and so the upper sum and lower sum of f...