Main Subjects = Graph theory
t-Pancyclic Arcs in Tournaments

Volume 4, Issue 2, December 2019, Pages 123-130

10.22049/cco.2019.26333.1097

Wei Meng; Steffen Grueter; Yubao Guo; Manu Kapolke; Simon Meesker


Girth, minimum degree, independence, and broadcast independence

Volume 4, Issue 2, December 2019, Pages 131-139

10.22049/cco.2019.26346.1098

Stephane Bessy; Dieter Rautenbach


On the edge-connectivity of C_4-free graphs

Volume 4, Issue 2, December 2019, Pages 141-150

10.22049/cco.2019.26453.1113

Peter Dankelmann


Different-Distance Sets in a Graph

Volume 4, Issue 2, December 2019, Pages 151-171

10.22049/cco.2019.26467.1115

Jason T. Hedetniemi; Stephen T. Hedetniemi; Renu C. Renu C. Laskar; Henry Martyn Mulder


Directed domination in oriented hypergraphs

Volume 4, Issue 2, December 2019, Pages 173-183

10.22049/cco.2019.26466.1114

Yair Caro; Adriana Hansberg


On trees with equal Roman domination and outer-independent Roman domination numbers

Volume 4, Issue 2, December 2019, Pages 185-199

10.22049/cco.2019.26319.1095

Seyed Mahmoud Sheikholeslami; Sakineh Nazari-Moghaddam


On Hop Roman Domination in Trees

Volume 4, Issue 2, December 2019, Pages 201-208

10.22049/cco.2019.26469.1116

Nader Jafari Rad; Abolfazl Poureidi


Strong Alliances in Graphs

Volume 4, Issue 1, June 2019, Pages 1-13

10.22049/cco.2018.25921.1056

C. Hegde; B. Sooryanarayana


New skew equienergetic oriented graphs

Volume 4, Issue 1, June 2019, Pages 15-24

10.22049/cco.2018.26286.1093

Xiangxiang Liu; Ligong Wang; Cunxiang Duan


The Roman domination and domatic numbers of a digraph

Volume 4, Issue 1, June 2019, Pages 47-59

10.22049/cco.2019.26356.1101

Zhihong Xie; Guoliang Hao; Shouliu Wei


Classification of rings with toroidal annihilating-ideal graph

Volume 3, Issue 2, December 2018, Pages 93-119

10.22049/cco.2018.26060.1072

Selvakumar Krishnan; Subbulakshmi P


On the harmonic index of bicyclic graphs

Volume 3, Issue 2, December 2018, Pages 121-142

10.22049/cco.2018.26171.1081

Reza Rasi


Leap Zagreb indices of trees and unicyclic graphs

Volume 3, Issue 2, December 2018, Pages 179-194

10.22049/cco.2018.26285.1092

Ivan Gutman; Zehui Shao; Zepeng Li; ShaohuiShaohui Wang; Pu We


Roman domination excellent graphs: trees

Volume 3, Issue 1, June 2018, Pages 1-24

10.22049/cco.2017.25806.1041

Vladimir D. Samodivkin


Total $k$-Rainbow domination numbers in graphs

Volume 3, Issue 1, June 2018, Pages 37-50

10.22049/cco.2018.25719.1021

Hossein Abdollahzadeh Ahangar; Jafar Amjadi; Nader Jafari Rad; Vladimir D. Samodivkin


Reformulated F-index of graph operations

Volume 2, Issue 2, September 2017, Pages 87-98

10.22049/cco.2017.13630

Hamideh Aram; Nasrin Dehgardi