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The Road Not Taken. " The Road Not Taken " is a narrative poem by Robert Frost, first published in the August 1915 issue of the Atlantic Monthly, [1] and later published as the first poem in the 1916 poetry collection, Mountain Interval. Its central theme is the divergence of paths, both literally and figuratively, although its interpretation ...
v − 1. Chromatic number. 2 if v > 1. Table of graphs and parameters. In graph theory, a tree is an undirected graph in which any two vertices are connected by exactly one path, or equivalently a connected acyclic undirected graph. [1] A forest is an undirected graph in which any two vertices are connected by at most one path, or equivalently ...
"The Garden of Forking Paths" (original Spanish title: "El jardín de senderos que se bifurcan") is a 1941 short story by Argentine writer and poet Jorge Luis Borges. It is the title story in the collection El jardín de senderos que se bifurcan (1941), which was republished in its entirety in Ficciones ( Fictions ) in 1944.
Kruskal's algorithm[1] finds a minimum spanning forest of an undirected edge-weighted graph. If the graph is connected, it finds a minimum spanning tree. It is a greedy algorithm that in each step adds to the forest the lowest-weight edge that will not form a cycle. [2] The key steps of the algorithm are sorting and the use of a disjoint-set ...
The Roman Appian Way, near Casal Rotondo, to the southeast of Rome, Italy. Historic roads (historic trails in USA and Canada) are paths or routes that have historical importance due to their use over a period of time. Examples exist from prehistoric times until the early 20th century. They include ancient trackways, long-lasting roads ...
Arboricity. The arboricity of an undirected graph is the minimum number of forests into which its edges can be partitioned. Equivalently it is the minimum number of spanning forests needed to cover all the edges of the graph. The Nash-Williams theorem provides necessary and sufficient conditions for when a graph is k -arboric.
1. A book, book graph, or triangular book is a complete tripartite graph K1,1,n; a collection of n triangles joined at a shared edge. 2. Another type of graph, also called a book, or a quadrilateral book, is a collection of 4 -cycles joined at a shared edge; the Cartesian product of a star with an edge. 3.
Canopy walkways ("Baumkronenpfad") at Hainich National Park, Germany. Canopy walkways – also called canopy walks, treetop walks or treetop walkways – provide pedestrian access to a forest canopy. Early walkways consisted of bridges between trees in the canopy of a forest; mostly linked up with platforms inside or around the trees.