Title On the maximum ABC index of bipartite graphs without pendent vertices Type of Research Article Keywords On the maximum ABC index of bipartite graphs without pendent vertices Abstract On the maximum ABC index of bipartite graphs without pendent vertices Researchers Zehui Shao (First Researcher)، Pu Wu (Second Researcher)، Zhang Jiang (Third Researcher)، Seyed Mahmoud Sheikholeslami Kavkani (Fourth Researcher)، Ying Wang (Fifth Researcher)