High Quality Content by WIKIPEDIA articles! A median graph is an undirected graph in which for every three vertices x, y, and z there is a unique vertex that belongs to shortest paths between any two of x, y, and z. If this is the case, then the operation defines a median algebra having the vertices of the graph as its elements. Conversely, in any median algebra, one may define an interval [x, z] to be the set of elements y such that = y. One may define a graph from a median algebra by creating a vertex for each algebra element and an edge for each pair (x, z) such that the interval [x, z] contains no other elements. If the algebra has the property that every interval is finite, then this graph is a median graph, and it accurately represents the algebra in that the median operation defined by shortest paths on the graph coincides with the algebra's original median operation.
Bitte wählen Sie Ihr Anliegen aus.
Rechnungen
Retourenschein anfordern
Bestellstatus
Storno