The problem of minimizing the difference of two convex functions is called polyhedral d.c. optimization problem if at least one of the two component functions is polyhedral. We characterize the existence of global optimal solutions of polyhedral d.c. optimization problems. This result is used to...

The most effective solution to cope with the ever increasing bandwidth demands is by using Ethernet Passive Optical Network (EPON). Thus, there are needs in introducing an EPON subject for Engineering Postgraduate students. However, since networking is a subject that is not easy to visualize,...