unit distance graph造句
例句與造句
- The Hadwiger Nelson problem concerns the chromatic number of unit distance graphs.
- Any Cartesian product of unit distance graphs produces another unit distance graph.
- Any Cartesian product of unit distance graphs produces another unit distance graph.
- In graph theoretic terms, how dense can a unit distance graph be?
- It generalises the concept of unit distance graph to more than 2 dimensions.
- It's difficult to find unit distance graph in a sentence. 用unit distance graph造句挺難的
- According to this looser definition of a unit distance graph, all generalized Petersen graphs are unit distance graphs.
- According to this looser definition of a unit distance graph, all generalized Petersen graphs are unit distance graphs.
- Another important open problem concerning unit distance graphs asks how many edges they can have relative to their number of vertices.
- This example shows that a graph may require very different dimensions to be represented as a unit distance graphs and as a strict unit distance graph.
- This example shows that a graph may require very different dimensions to be represented as a unit distance graphs and as a strict unit distance graph.
- In this case, the result of applying the Haj髎 construction is the Moser spindle, a seven-vertex unit distance graph that requires four colors.
- It is also NP-complete to determine whether a unit distance graph has a Hamiltonian cycle, even when the vertices of the graph all have integer coordinates.
- It is known that there exist unit distance graphs requiring four colors in any proper coloring, and that all such graphs can be colored with at most seven colors.
- Since the Moser spindle is a subgraph of the infinite unit distance graph of the plane, the graph of the plane also requires at least four colors in any coloring.
- Edges of unit distance graphs sometimes cross each other, so they are not always planar; a unit distance graph without crossings is called a "'matchstick graph " '.
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