Polynomials are a classical subject of mathematics. The first step towards the
abstract concept of polynomials was the investigation of real and complex
functions.During the last century studies on polynomials over commutative
rings with identity gave rise for researches on polynomials over other classes
of algebraic structures, such as groups, semigroups,lattices, rings (with or
without identity), etc.. The purpose of this work is to give an overview of
polynomials over commutative rings with identity and especially over the ring
Z_n, the residue classes modulo n. Besides basic definitions...