On clique polynomials H Hajiabolhassan, ML Mehrabadi Australasian Journal of Combinatorics 18, 313-316, 1998 | 50 | 1998 |
Circular chromatic number and Mycielski construction H Hajiabolhassan, X Zhu Journal of graph theory 44 (2), 106-115, 2003 | 48* | 2003 |
On the chromatic number of general Kneser hypergraphs M Alishahi, H Hajiabolhassan Journal of Combinatorial Theory, Series B 115, 186-209, 2015 | 42 | 2015 |
Minimal coloring and strength of graphs H Hajiabolhassan, ML Mehrabadi, R Tusserkani Discrete Mathematics 215 (1-3), 265-270, 2000 | 41 | 2000 |
Circular chromatic number of Kneser graphs H Hajiabolhassan, X Zhu Journal of Combinatorial Theory, Series B 88 (2), 299-303, 2003 | 32 | 2003 |
On colorings of graph powers H Hajiabolhassan Discrete Mathematics 309 (13), 4299-4305, 2009 | 30 | 2009 |
On the b-chromatic number of Kneser graphs H Hajiabolhassan Discrete Applied Mathematics 158 (3), 232-234, 2010 | 28 | 2010 |
Graph Powers and Graph Homomorphisms H Hajiabolhassan, A Taherkhani The Electronic Journal of Combinatorics 17, 2010 | 25 | 2010 |
Bounds for visual cryptography schemes H Hajiabolhassan, A Cheraghi Discrete Applied Mathematics 158 (6), 659-665, 2010 | 23 | 2010 |
Uniquely 2-list colorable graphs YG Ganjali, M Ghebleh, H Hajiabolhassan, M Mirzazadeh, BS Sadjad Discrete applied mathematics 119 (3), 217-225, 2002 | 21 | 2002 |
On the isoperimetric spectrum of graphs and its approximations A Daneshgar, H Hajiabolhassan, R Javadi Journal of Combinatorial Theory, Series B 100 (4), 390-412, 2010 | 19 | 2010 |
Chromatic number via Turán number M Alishahi, H Hajiabolhassan Discrete Mathematics 340 (10), 2366-2377, 2017 | 18 | 2017 |
Graph homomorphisms and nodal domains A Daneshgar, H Hajiabolhassan Linear algebra and its applications 418 (1), 44-52, 2006 | 18 | 2006 |
Hedetniemi's conjecture for Kneser hypergraphs H Hajiabolhassan, F Meunier Journal of Combinatorial Theory, Series A 143, 42-55, 2016 | 17 | 2016 |
Graph homomorphisms through random walks A Daneshgar, H Hajiabolhassan Journal of Graph Theory 44 (1), 15-38, 2003 | 17 | 2003 |
Altermatic number of categorical product of graphs M Alishahi, H Hajiabolhassan Discrete Mathematics 341 (5), 1316-1324, 2018 | 15* | 2018 |
Strengthening topological colorful results for graphs M Alishahi, H Hajiabolhassan, F Meunier European Journal of Combinatorics 64, 27-44, 2017 | 15 | 2017 |
Some concepts in list coloring C Eslahchi, M Ghebleh, H Hajiabolhassan Journal of Combinatorial Mathematics and Combinatorial Computing 41, 151-160, 2002 | 14 | 2002 |
On the chromatic number of matching Kneser graphs M Alishahi, H Hossein Combinatorics, Probability and Computing 29 (1), 1-21, 2020 | 13* | 2020 |
Chromatic number of random Kneser hypergraphs M Alishahi, H Hajiabolhassan Journal of Combinatorial Theory, Series A 154, 1-20, 2018 | 13 | 2018 |