On edge Co-PI indices
محورهای موضوعی : مجله بین المللی ریاضیات صنعتی
A. Arjomandfar
1
(Islamic Azad University, Shahr-e Rey Branch, Tehran,
Iran.)
O. Khormali
2
(Mathematics and Informatics Research Group,
ACECR, Tarbiat Modares University, B.O. Box: 14115-
343, Tehran, Iran.)
کلید واژه: Vertex-PI index- Edge-PI indic, Molecular graph, Vertex Co-PI indices,
چکیده مقاله :
In this paper, at first we mention to some results related to PI and vertex Co-PI indices and then we introduce the edge versions of Co-PI indices. Then, we obtain some properties about these new indices.