Hossein Abdollahzadeh Ahangar

According to our database, Hossein Abdollahzadeh Ahangar authored at least 31 papers between 2007 and 2023.

Collaborative distances:

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

2023

Graphs with small or large Roman {3}-domination number.

Nafiseh Ebrahimi, Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

RAIRO Oper. Res., May, 2023

Hop total Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami, Marzieh Soroudi

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

Restrained condition on double Roman dominating functions.

Babak Samadi, Nasrin Soltankhah, Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Doost Ali Mojdeh, Seyed Mahmoud Sheikholeslami, Juan Carlos Valenzuela Tripodoro

Appl. Math. Comput., 2023

2022

Further results on independent double roman trees.

Abdelkader Rahmouni, Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

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

Outer independent signed double Roman domination.

Hossein Abdollahzadeh Ahangar, Fatemeh Nahani Pour, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

J. Appl. Math. Comput., April, 2022

Lower and upper bounds on independent double Roman domination in trees.

Mahla Kheibari, Hossein Abdollahzadeh Ahangar, R. Khoeilar, Seyed Mahmoud Sheikholeslami

Electron. J. Graph Theory Appl., 2022

Total Roman 2-dominating functions in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami, Juan Carlos Valenzuela Tripodoro

Discuss. Math. Graph Theory, 2022

Global triple Roman dominating function.

Fatemeh Nahani Pour, Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

Discret. Appl. Math., 2022

Maximal double Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami, Juan Carlos Valenzuela Tripodoro

Appl. Math. Comput., 2022

Trees with total Roman domination number equal to Roman domination number plus its domination number: complexity and structural properties.

Hossein Abdollahzadeh Ahangar

AKCE Int. J. Graphs Comb., 2022

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

Total k-rainbow reinforcement number in graphs.

L. Shahbazi, Hossein Abdollahzadeh Ahangar, R. Khoeilar, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., 2021

Triple Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, M. P. Álvarez-Ruiz, Mustapha Chellali, Seyed Mahmoud Sheikholeslami, Juan Carlos Valenzuela Tripodoro

Appl. Math. Comput., 2021

2020

Signed total double Roman k-domination in graphs.

L. Shahbazi, Hossein Abdollahzadeh Ahangar, R. Khoeilar, Seyed Mahmoud Sheikholeslami

Discret. Math. Algorithms Appl., 2020

Outer independent double Roman domination.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

Appl. Math. Comput., 2020

2019

Total Roman reinforcement in graphs.

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

Discuss. Math. Graph Theory, 2019

Signed double Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

Discret. Appl. Math., 2019

2017

Outer independent Roman dominating functions in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Vladimir Samodivkin

Int. J. Comput. Math., 2017

On the double Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Seyed Mahmoud Sheikholeslami

Discret. Appl. Math., 2017

The forcing total restrained geodetic number and the total restrained geodetic number of a graph: Realizability and complexity.

Hossein Abdollahzadeh Ahangar, M. Najimi, Vladimir Samodivkin, Ismael G. Yero

AKCE Int. J. Graphs Comb., 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

Signed mixed Roman domination numbers in graphs.

Hossein Abdollahzadeh Ahangar, Leila Asgharsharghi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann

J. Comb. Optim., 2016

On maximal Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Mustapha Chellali, Dorota Kuziak, Vladimir Samodivkin

Int. J. Comput. Math., 2016

On the forcing connected geodetic number and the connected geodetic number of a graph.

Hossein Abdollahzadeh Ahangar, Futaba Fujie-Okamoto, Vladimir Samodivkin

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

2014

Signed Roman domination in graphs.

Hossein Abdollahzadeh Ahangar, Michael A. Henning, Christian Löwenstein, Yancai Zhao, Vladimir Samodivkin

J. Comb. Optim., 2014

2013

Signed total domination on Kronecker products of two complete graphs.

Yancai Zhao, Erfang Shan, Hossein Abdollahzadeh Ahangar

Australas. J Comb., 2013

2007

Graphs K1*4, 5, K1*5, 4, K1*4, 4, K2, 3, 4, have the property M(3).

Doost Ali Mojdeh, A. Ahmadi Haji, Hossein Abdollahzadeh Ahangar, Abdollah Khodkar

Ars Comb., 2007