The Vol.4, 2018 of International Journal of Mathematical Combinatorics is released today. In this Issue, there are 12 papers published:
A Combinatorial Approach for the Spanning Tree Entropy in Complex Network By E.M.Badr
and B. Mohamed
2. On Isomorphism Theorems of Neutrosophic R-Modules By M. E. Otene, A. D. Akwu and O. Oyewumi
3. On 1RJ Moves in Cartesian Product Graphs By O. Oyewumi and A. D. Akwu
4. Characteristic Properties of the Indicatrix Under a Kropina Change of Finsler Metric By Gauree Shanker
5. Neighbourly Pseudo Irregular Fuzzy Graphs By N.R.Santhi Maheswari and V.Jeyapratha
6. Spectra of a New Join in Duplication Graph By K.Reji Kumar and Renny P. Varghese
7. The Gourava Index of Four Operations on Graphs By V. R. Kulli, V. Lokesha, Sushmitha Jain and Manjunath. M
8. Strongly 2-Multiplicative Graphs By D.D.Somashekara, C.R.Veena and H. E. Ravi
9. A Characteristic of Directed Pathos Line Digraph of an Arborescence By M.C.Mahesh Kumar and H.M.Nagesh
10.Independent Open Irredundant Colorings of Graphs By T.Muthulakshmi and M.Subramanian
11.Different Domination Energies in Graphs By M.Kamal Kumar, Johnson Johan Jayersy and R.Winson
12.Product Cordial Labeling of Extensions of Barbell Graph By A. S.K.Patel, U.M.Prajapati and A.N.Kansagara
This issue will also be published in its book format with an ISBN number.