University of Cambridge > Mathematics > Statistical Laboratory > Richard Weber > Unsolved Problems

Unsolved Problems in OR

This page contains a list of open problems that I find intriguing. They are not as difficult or as significant as the question of whether P does or not equal NP. But these are problems that are easy to state and understand, but whose solution has defied the efforts of good researchers over a number of years. Most of these problems are in the realm of stochastic optimization. I would love to see a solution to any of these problems.

The bomber problem
See description

The rendezvous problem See description

Search for a moving target See abstract

Non-preemptive release of stochastic jobs to uniform machines
See abstract

The unimportance of inserted idle time in non-preemptive stochastic scheduling to minimize flow time on parallel machines