Problems of loading, unloading and premarshalling of stacks as well as combinations thereof appear in several practical applications, e.g. container terminals, container ship stowage planning, tram depots or steel industry. Although these problems seem to be different at first sight, they hold...

In this paper we present complexity results for flow shop problems with synchronous movement which are a variant of a non-preemptive permutation flow shop. Jobs have to be moved from one machine to the next by an unpaced synchronous transportation system, which implies that the processing is...

In this paper we consider a sports league scheduling problem which occurs in planning non-professional table-tennis leagues. The problem consists in finding a schedule for a time-relaxed double round robin tournament where different hard and soft constraints have to be taken into account. We...