For the reverse question—whether graph isomorphism is in P—the evidence is more mixed. On the one hand, there are practical algorithms for graph isomorphism that can’t solve the problem ...

For decades computer scientists had been trying to develop a fast algorithm for determining when it’s possible to add edges to a graph so that it remains “planar,” meaning none of its edges cross each ...

A new algorithm efficiently solves the graph isomorphism problem, computer scientist László Babai announced November 10 at a Combinatorics and Theoretical Computer Science seminar at the ...

Mathematicians have long sought to develop algorithms that can compare any two graphs. In practice, many algorithms always ...

It’s often assumed that Dijkstra’s algorithm, or the A* graph traversal algorithm is used, but the reality is that although these pure graph theory algorithms are decidedly influential ...

For the reverse question — whether graph isomorphism is in P — the evidence is more mixed. On the one hand, there are practical algorithms for graph isomorphism that can’t solve the problem ...