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Also eon. age Age of Discovery Also called the Age of Exploration. The time period between approximately the late 15th century and the 17th century during which seafarers from various European polities traveled to, explored, and charted regions across the globe which had previously been unknown or unfamiliar to Europeans and, more broadly, during which previously isolated human populations ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 February 2025. "American history" redirects here. For the history of the continents, see History of the Americas. Further information: Economic history of the United States Current territories of the United States after the Trust Territory of the Pacific Islands was given independence in 1994 This ...
A drawing of a graph with 6 vertices and 7 edges. In mathematics and computer science, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of vertices (also called nodes or points) which are connected by edges (also called arcs, links or lines).
An ordered pair of vertices, such as an edge in a directed graph. An arrow (x, y) has a tail x, a head y, and a direction from x to y; y is said to be the direct successor to x and x the direct predecessor to y. The arrow (y, x) is the inverted arrow of the arrow (x, y). articulation point A vertex in a connected graph whose removal would ...
A graph that contains a Hamiltonian cycle is called a Hamiltonian graph. Similar notions may be defined for directed graphs , where each edge (arc) of a path or cycle can only be traced in a single direction (i.e., the vertices are connected with arrows and the edges traced "tail-to-head").
a type of minivan sold in the United States (see Dodge Caravan) caretaker (n.) one who takes care of a building, e.g. a school (US: janitor; cf. s.v. custodian) one put in charge of a farm after eviction of tenant one who takes care of someone or something stopgap government or provisional government
Pete Wentz and Billy Joel. Shutterstock (2) Fall Out Boy put a modern twist on a classic rock hit by updating the lyrics to Billy Joel’s “We Didn’t Start the Fire” more than 30 years after ...
In the mathematical field of graph theory, a word-representable graph is a graph that can be characterized by a word (or sequence) whose entries alternate in a prescribed way. In particular, if the vertex set of the graph is V , one should be able to choose a word w over the alphabet V such that letters a and b alternate in w if and only if the ...