University of KashanIranian Journal of Mathematical Chemistry2228-64898120170301Neighbourly Irregular Derived Graphs53604087810.22052/ijmc.2016.40878ENB.BasavanagoudKARNATAK UNIVERSITY DHARWADS.PatilKarnatak UniversityV. R.DesaiKarnatak UniversityM.TavakoliFerdowsi University of MashhadA. R.AshrafiUniversity of Kashan0000-0002-2858-0663Journal Article20160309A connected graph G is said to be neighbourly irregular graph if no two adjacent vertices of G have same degree. In this paper we obtain neighbourly irregular derived graphs such as semitotal-point graph, k^{tℎ} semitotal-point graph, semitotal-line graph, paraline graph, quasi-total graph and quasivertex-total graph and also neighbourly irregular of some graph products.https://ijmc.kashanu.ac.ir/article_40878_84e728f990f1722c2fdf11f8aec1c6e0.pdf