Curves in dual space and surfaces

In curve theory, the definitions and characterizations of many curves were given in Euclidean space. The properties of these curves are investigated in dual space. For the Study transformation, dual points of unit dual sphere are one to one corresponded with straight lines in Euclidean space. With this transformation, we take special curves in unit dual sphere and correspond them to ruled surfaces. The curves which are investigated in dual space are taken in unit dual sphere and ruled surfaces related with these curves are formed. Some properties and results of the ruled surfaces are found.