Regular issue, devoted to a number of issues, starting with one of the classical optimization problems, the so-called Ulam problem. Other papers address, in particular, the questions of security and abuse in the world wide web and the associated systems and devices, as well as the problem of satellite control.

Regular issue, devoted to a number of issues, starting with one of the classical optimization problems, the so-called Ulam problem. Other papers address, in particular, the questions of security and abuse in the world wide web and the associated systems and devices, as well as the problem of satellite control.