Jafar Amjadi

According to our database, Jafar Amjadi authored at least 38 papers between 2015 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of three.

2023

Restrained {2}-domination in graphs.

Kazhal Haghparast, Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

RAIRO Oper. Res., September, 2023

Restrained Italian bondage number in graphs.

Nafiseh Ebrahimi, Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., July, 2023

Independent Roman bondage of graphs.

Saeed Kosari, Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

RAIRO Oper. Res., March, 2023

New results on quadruple Roman domination in graphs.

Jafar Amjadi, Nesa Khalili

Discret. Math. Algorithms Appl., February, 2023

Quasi-total Roman reinforcement in graphs.

Nafiseh Ebrahimi, Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

AKCE Int. J. Graphs Comb., January, 2023

2022

On [<i>k</i>]-Roman domination subdivision number of graphs.

Kazhal Haghparast, Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

AKCE Int. J. Graphs Comb., September, 2022

Total double Roman domination numbers in digraphs.

Jafar Amjadi, F. Pourhosseini

Discret. Math. Algorithms Appl., 2022

Quadruple Roman domination in graphs.

Jafar Amjadi, Nesa Khalili

Discret. Math. Algorithms Appl., 2022

Triple Roman domination subdivision number in graphs.

Jafar Amjadi, H. Sadeghi

Comput. Sci. J. Moldova, 2022

2021

Quadruple Roman Domination in Trees.

Zheng Kou, Saeed Kosari, Guoliang Hao, Jafar Amjadi, Nesa Khalili

Symmetry, 2021

Some progress on the mixed roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Mustapha Chellali, Saeed Kosari, Vladimir Samodivkin, Seyed Mahmoud Sheikholeslami

RAIRO Oper. Res., 2021

Total 2-rainbow domination numbers in trees.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Mustapha Chellali, Sakineh Nazari-Moghaddam, Seyed Mahmoud Sheikholeslami

Discuss. Math. Graph Theory, 2021

Classification of rings with toroidal co-annihilating-ideal graphs.

Rana Khoeilar, Jafar Amjadi

Discret. Math. Algorithms Appl., 2021

Double Roman reinforcement number in graphs.

Jafar Amjadi, H. Sadeghi

AKCE Int. J. Graphs Comb., 2021

2020

On the Roman domination subdivision number of a graph.

Jafar Amjadi, R. Khoeilar, Mustapha Chellali, Zehui Shao

J. Comb. Optim., 2020

2019

On the total Roman domination in trees.

Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Marzieh Soroudi

Discuss. Math. Graph Theory, 2019

Total Roman reinforcement in graphs.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Mustapha Chellali, Sakineh Nazari-Moghaddam, Seyed Mahmoud Sheikholeslami

Discuss. Math. Graph Theory, 2019

On two open problems concerning weak Roman domination in trees.

Jafar Amjadi, Mustapha Chellali, Seyed Mahmoud Sheikholeslami, Marzieh Soroudi

Australas. J Comb., 2019

On the Total Double Roman Domination.

Zehui Shao, Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Mina Valinavaz

IEEE Access, 2019

2018

Nordhaus-Gaddum bounds for total Roman domination.

Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Marzieh Soroudi

J. Comb. Optim., 2018

An upper bound on the double Roman domination number.

Jafar Amjadi, Sakineh Nazari-Moghaddam, Seyed Mahmoud Sheikholeslami, Lutz Volkmann

J. Comb. Optim., 2018

Independent Roman domination and 2-independence in trees.

Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Mina Valinavaz, Nasrin Dehgardi

Discret. Math. Algorithms Appl., 2018

A correction on the signed bad number.

Jafar Amjadi, R. Khoeilar, Marzieh Soroudi

Discret. Math. Algorithms Appl., 2018

The co-annihilating graph of a commutative ring.

Jafar Amjadi, A. Alilou

Discret. Math. Algorithms Appl., 2018

The signed total Roman domatic number of a digraph.

Jafar Amjadi

Discret. Math. Algorithms Appl., 2018

Signed double Roman k-domination in graphs.

Jafar Amjadi, Hong Yang, Sakineh Nazari-Moghaddam, Seyed Mahmoud Sheikholeslami, Zehui Shao

Australas. J Comb., 2018

2017

A sufficient condition for large rainbow domination number.

Jafar Amjadi, Nasrin Dehgardi, Michitaka Furuya, Seyed Mahmoud Sheikholeslami

Int. J. Comput. Math. Comput. Syst. Theory, 2017

On the genus of the graph associated to a commutative ring.

Krishnan Selvakumar, P. Subbulakshmi, Jafar Amjadi

Discret. Math. Algorithms Appl., 2017

Global total Roman domination in graphs.

Jafar Amjadi, Sakineh Nazari-Moghaddam, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., 2017

The k-rainbow reinforcement numbers in graphs.

Jafar Amjadi, Leila Asgharsharghi, Nasrin Dehgardi, Michitaka Furuya, Seyed Mahmoud Sheikholeslami, Lutz Volkmann

Discret. Appl. Math., 2017

2016

Signed Roman edge domination numbers in graphs.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Yancai Zhao

J. Comb. Optim., 2016

A new graph associated to a commutative ring.

A. Alilou, Jafar Amjadi, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., 2016

Rainbow restrained domination numbers in graphs.

Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann

Ars Comb., 2016

On the 2-rainbow bondage number of planar graphs.

Jafar Amjadi, A. Parnian

Ars Comb., 2016

On the rainbow restrained domination number.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Vladimir Samodivkin, Lutz Volkmann

Ars Comb., 2016

Maximal 2-rainbow domination number of a graph.

Hossein Abdollahzadeh Ahangar, Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Dorota Kuziak

AKCE Int. J. Graphs Comb., 2016

2015

The <i>k</i>-rainbow bondage number of a digraph.

Jafar Amjadi, Negar Mohammadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann

Discuss. Math. Graph Theory, 2015

Game total domination subdivision number of a graph.

Jafar Amjadi, Hossein Karami, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., 2015