The Communications in Combinatorics and Optimization (CCO) is a peer-reviewed journal having two issues annually. The journal is devoted to advancing and promoting the theory and applications of combinatorics and optimization and interdisciplinary. It is aimed to publish original high quality refereed papers, occasionally survey articles and short notes. There are no fees for submitting, processing or publishing an article in Communications in Combinatorics and Optimization From the beginning of 2023, four issues will be published each year at the end of March, June, September, and December

Special Issue, "Selected Papers of the International Conference on Graphs, Networks and Combinatorics (ICGNC 2023)"  Submit your manuscript here
Special Issue, "Selected Papers of the International Conference on Graph Theory and its Applications (ICGTA23)"  Submit your manuscript here
CCO is a member of  

  All submissions to CCO are checked by the iThenticate plagiarism software checker before being processed for peer review. 




Current Issue: Volume 8, Issue 4, December 2023, Pages 603-766 

Domination parameters of the splitting graph of a graph

Pages 631-637


Deepalakshmi J; Marimuthu G; Somasundaram Arumugam; Subramanian Arumugam

Independent Italian bondage of graphs

Pages 649-664


Saeed Kosari; Jafar Amjadi; Aysha Khan; Lutz Volkmann

On local antimagic chromatic number of various join graphs

Pages 693-714


K. Premalatha; Gee-Choon Lau; Subramanian Arumugam; W.C. Shiu

Cycle transit function and betweenness

Pages 725-735


Lekshmi Kamal K Sheela; M. Changat; Asha Paily

Lower bound on the KG-Sombor index

Pages 751-757


Saeed Kosari; Nasrin Dehgardi; Aysha Khan