Domination and Eternal Domination of Jahangir Graph
Ramy Shaheen, Mohammad Assaad, Ali Kassem

Open J. Discrete Math. Vol.9 No.3, July 26, 2019
DOI:10.4236/ojdm.2019.93008

Infinite Sets of Solutions and Almost Solutions of the Equation N ⋅ M= reversal(N⋅M)
Viorel Niţică, Premalata Junius

Open J. Discrete Math. Vol.9 No.3, July 09, 2019
DOI:10.4236/ojdm.2019.93007