We study an optimal design problem for serial machining lines. Such lines consist of a sequence of stations. At every station, the operations to manufacture a product are grouped into blocks. The operations within each block are performed simultaneously by the same spindle head and the blocks of...

The total sum of capital investments in ferrous metallurgy during the Fifth Five Year Plan considerably exceeded the investments in the preceding five-year plan. If the average annual capital investments in ferrous metallurgy during the First Five Year Plan is 100, then investments during the...

We consider a single resource that performs a set of jobs, each job being defined by its operation time and its due date. Jobs are not preemptive, which means that a job that starts cannot be interrupted before completion. These jobs have been scheduled so as to minimize the total tardiness, and...