Science and Education Publishing Turkish Journal of Analysis and Number Theory 2333-1232 5 1 2017 1 5 First Zagreb Index, F-index and F-coindex of the Line Subdivision Graphs 23 26 EN S. Ghobadi Department of Mathematics, Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran M. Ghorbaninejad TJANT2017515 10.12691/tjant-5-1-5 2016 8 14 2016 10 23 2017 1 3 In this paper we investigate first Zagreb index, F-index and F-coindex of the line graph of some chemical graphs using the subdivision concept.