Abstract
It is known that certain kinds of Retarded Differential Equations can be expressed as Integral Equations, that is why we are interested in investigating this kind of equation.The purpose of this project, therefore, is to develop the theory of Integral Equations, when the integrals are considered in the sense of Kurzweil-Henstock or Kurzweil-Henstock-Stieltjes, through the identification o…