...pollution, behavioral sciences, etc. Significant Recent Achievements Recent Discoveries in Sporadic Groups One of the most important concepts in mathematics is that of a group. A group consists of a set of objects (or elements) and an operation involving them which satisfies...

...function and continuity of a complex function are also introduced in this chapter. 2.1 Complex Functions One of the most important concepts in mathematics is that of a function. You may recall from previous courses that a function is a certain kind of correspondence between two...