Volume & Issue: Volume 8, Issue 2, June 2023, Pages 271-444 
New bounds on Sombor index

Pages 305-311

10.22049/cco.2022.27600.1296

Ivan Gutman; Necla Kircali Gürsoy; Arif Gürsoy; Alper Ülker


A lower bound for the second Zagreb index of trees with given Roman domination number

Pages 391-396

10.22049/cco.2022.27553.1288

Ayu Ameliatul Shahilah Ahmad Jamri; Fateme Movahedi; Roslan Hasni; Mohammad Hadi Akhbari


Coalition Graphs

Pages 423-430

10.22049/cco.2022.27916.1394

Teresa W. Haynes; Jason T. Hedetniemi; Stephen T Hedetniemi; Alice McRae; Raghuveer Mohan