Примеры использования Petersen graph на Английском языке и их переводы на Русский язык
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Tietze's graph may be formed from the Petersen graph by replacing one of its vertices with a triangle.
The Petersen family then consists of every graph that can be reached from the Petersen graph by a combination of Δ-Y and Y-Δ transforms.
every snark has a subgraph that can be formed from the Petersen graph by subdividing some of its edges.
It is the bipartite double cover of the Petersen graph, formed by replacing each Petersen graph vertex by a pair of vertices and each Petersen graph edge by a pair of crossed edges.
More generally the snarks are defined as the graphs that, like the Petersen graph, are bridgeless, 3-regular, and of class 2.
Although the Petersen graph has been known since 1898, its definition as
The converse however is not true in general(for instance the complete graph K5 in the Petersen graph is a minor
Finally, in 2007, David Eppstein used the name Nauru graph because the flag of the Republic of Nauru has a 12-point star similar to the one that appears in the construction of the graph as a generalized Petersen graph.
therefore cannot be the Petersen graph.
has few distinct values the Petersen graph has 3, which is the minimum possible, given its diameter.
show that none of them is the Petersen graph, by finding a cycle in each of them that is shorter than any cycle in the Petersen graph. .
By applying the flip-flop method of Chvátal(1973) to the Petersen graph and the flower snark,
and in the case of the Petersen graph O3 it is n+ 1.
For instance, in this notation, the Petersen graph is G(5,2):
See Alspach(1983) for a classificiation of non-Hamiltonian generalized Petersen graphs.
So the Nauru graph is one of only seven symmetric Generalized Petersen graphs.
So the Möbius-Kantor graph is one of only seven symmetric Generalized Petersen graphs.
These seven graphs are therefore the only symmetric generalized Petersen graphs.
It and the prisms are the only generalized Petersen graphs G(n, p)
In graph theory, the generalized Petersen graphs are a family of cubic graphs formed by connecting the vertices of a regular polygon to the corresponding vertices of a star polygon.