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 Indonesia-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (2023)"  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 9, Issue 2, June 2024, Pages 185-387 

Leech Graphs

Pages 205-215


Seena Varghese; Aparna Lakshmanan Savithri; Subramanian Arumugam

Mathematical results on harmonic polynomials

Pages 279-295


Walter Carballosa; J. E. Nápoles; José M. Rodríguez; O. Rosario; José M. Sigarreta