Evolutoids and pedaloids of frontals on timelike surfaces
In this article, we define evolutoids and pedaloids of frontals on timelike surfaces in Minkowski 3-space.The evolutoids of frontals on timelike surfaces are not only the generalization of evolutoids of curves in the Minkowski plane but also the generalization of caustics in Minkowski mezquila brooklyn 3-space.As an application of the singularity t