Sentence examples for an open problem from inspiring English sources

The way to stop such efforts is not clear, Mr. Conti said: "It's an open problem".

It is an open problem.

The reverse implication is an open problem.

However, this is still an open problem.

We consider this as an open problem.

Finally, an open problem for future research.

We leave it as an open problem.

Robust mobile robot navigation is an open problem.

The criterion also allows an open problem by K.-H.

However, the general flexible case is still an open problem.

Silvey identified finding such an inverse as an open problem.