Global triple Roman dominating function. - Fatemeh Nahani Pour; Hossein Abdollahzadeh Ahangar; Mustapha Chellali; Seyed Mahmoud Sheikholeslami (Discret. Appl. Math., 2022)

Outer independent signed double Roman domination. - Hossein Abdollahzadeh Ahangar; Fatemeh Nahani Pour; Mustapha Chellali; Seyed Mahmoud Sheikholeslami (J. Appl. Math. Comput., 2022)

An improved upper bound on the independent double Roman domination number of trees. - Fatemeh Nahani Pour; Hossein Abdollahzadeh Ahangar; Mustapha Chellali; Seyed Mahmoud Sheikholeslami (AKCE Int. J. Graphs Comb., 2022)