Core graduate classes (5000) and advanced classes (6000) are offered. The core classes constitute the main framework of a student's formal class work, and are designed to be broad-based but at an advanced level. They are intended to help the student gain a wide understanding in several major branches of chemistry and thus students are strongly encouraged to take some classes outside their area of specialization. Specialized classes provide the opportunity for in-depth study of selected topics which are more closely related to the student's research area.