Normal Curves in 4-Dimensional Galilean Space G4

In this article, first, we give the definition of normal curves in 4-dimensional Galilean spaceG4. Second, we state the necessary condition for a curve of curvatures τ(s) and σ(s) to be a normal curve in 4-dimensional Galilean spaceG4. Finally, we give some characterizations of normal curves with constant curvatures inG4.