例句與造句

1. This notion extends the idea of proper interval graphs such that a 0-proper interval graph is a proper interval graph.
2. This notion extends the idea of proper interval graphs such that a 0-proper interval graph is a proper interval graph.
3. This notion extends the idea of proper interval graphs such that a 0-proper interval graph is a proper interval graph.
4. For example, the subgraph isomorphism problem is NP-complete on connected proper interval graphs and on connected bipartite permutation graphs, but the "'induced "'subgraph isomorphism problem can be solved in polynomial time on these two classes.
5. Moreover, the induced subtree isomorphism problem ( i . e . the induced subgraph isomorphism problem where " G " 2 is restricted to be a tree ) can be solved in polynomial time on interval graphs, while the subtree isomorphism problem is NP-complete on proper interval graphs.
6. It's difficult to find proper interval graph in a sentence. 用proper interval graph造句挺難的
7. proved that " ? " m  " = " ? " for all proper interval graphs and the same authors also proved, see, that there exists a Cayley graph for which the " m "-eternal domination number does not equal the domination number, contrary to the claim in.