Hi,
this is my first post on forum. I studying math at university in Poland and I writring paper based on "Minimizing Total Completion Time on parallel Machines With Deadline Constraints" from 2003 . Not everything is understandable for me. There are proofs in article but not all are easy to follow. Some introduction will be good. I'm looking also some help, advise or tips. The math aspect of a paper is important.