Примеры использования Is hamiltonian на Английском языке и их переводы на Русский язык
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The Holt graph is Hamiltonian.
The F26A graph is Hamiltonian and can be described by the ICF notation 13.
The Folkman graph is Hamiltonian.
The Ljubljana graph is Hamiltonian and can be constructed from the ICF notation: 2.
Barnette's conjecture states that every cubic bipartite polyhedral graph is Hamiltonian.
The Dürer graph is Hamiltonian, with ICF notation.
The Balaban 10-cage has chromatic number 2, chromatic index 3, diameter 6,girth 10 and is hamiltonian.
The 5-regular Clebsch graph is hamiltonian, non planar and non eulerian.
These two graphs provide counterexamples to the conjecture of W. T. Tutte that every cubic 3-connected bipartite graph is Hamiltonian.
More strongly, whenever G2 is Hamiltonian, it is also pancyclic.
A refinement of Tait's conjecture,Barnette's conjecture that every bipartite 3-regular polyhedral graph is Hamiltonian, remains open.
The Desargues graph is Hamiltonian and can be constructed from the ICF notation: 5.
The one-vertex augmentation of a graph G contains a subgraph homeomorphic to an(n+ 1)-vertex wheel graph, if andonly if G is Hamiltonian.
The Ljubljana graph is Hamiltonian and bipartite The chromatic index of the Ljubljana graph is 3.
It is also NP-complete to test whether the square of a graph is Hamiltonian, and therefore whether it is pancyclic.
Finally, a graph is Hamiltonian if there exists a cycle that passes through each of its vertices exactly once.
Ore's theorem is a generalization of Dirac's theorem that,when each vertex has degree at least n/2, the graph is Hamiltonian.
The Folkman graph is Hamiltonian and has chromatic number 2, chromatic index 4, radius 3, diameter 4 and girth 4.
For some constant c{\displaystyle c}, almost every labeled graph with n{\displaystyle n} vertices and at least c n log( n){\displaystyle cn\log(n)}edges is Hamiltonian.
An undirected graph G is Hamiltonian if it contains a cycle that touches each of its vertices exactly once.
A related conjecture of Barnette states that every cubic polyhedral graph in which all faces have six orfewer edges is Hamiltonian.
The Chvátal graph is Hamiltonian, and plays a key role in a proof by Fleischner& Sabidussi(2002) that it is NP-complete to determine whether a triangle-free Hamiltonian graph is 3-colorable.
If G is a 2-connected, r-regular graph with at most 3r+ 1 vertices,then G is Hamiltonian or G is the Petersen graph.
If a 3-regular graph is Hamiltonian, its edges can be colored with three colors: use alternating colors for the edges on the Hamiltonian cycle(which must have even length by the handshaking lemma) and a third color for all remaining edges.
Published in 1973,it provides a counterexample to the Crispin Nash-Williams conjecture that every 4-regular 4-vertex-connected graph is Hamiltonian.
If negative weights and negatively weighted cycles are allowed, then finding a minimum cycle basis(without restriction) is also NP-hard,as it can be used to find a Hamiltonian cycle: if a graph is Hamiltonian, and all edges are given weight -1, then a minimum weight cycle basis necessarily includes at least one Hamiltonian cycle.
Barnette's conjecture, a still-open combination of Tait's and Tutte's conjecture,states that every bicubic polyhedral graph is Hamiltonian.
Published by Bondy and Murty in 1976,it provides a counterexample to the Tutte conjecture that every cubic 3-connected bipartite graph is Hamiltonian.
It is not possible to use Grinberg's theorem to find counterexamples to Barnette's conjecture,that every cubic bipartite polyhedral graph is Hamiltonian.
The Coxeter graph is hypohamiltonian: it does not itself have a Hamiltonian cycle butevery graph formed by removing a single vertex from it is Hamiltonian.