Getu, Seyoum (Prof.)Legesse, Desta2022-03-312023-11-042022-03-312023-11-042005-06http://etd.aau.edu.et/handle/123456789/31028This paper has two parts. In the first part the question "Why is it impossible to color the edges of kr(p.q) without forming either a red kp or a blue kq ?" is answered while in the second the question "What is the smallest value of nfor which k" ~kp.kq?" is changed to equivalent forms.enThesis