University of Kashan Iranian Journal of Mathematical Chemistry 2228-6489 9 2 2018 06 01 Some Remarks on the Arithmetic-geometric Index 113 120 63436 10.22052/ijmc.2017.96064.1309 EN J. Palacios The University of New Mexico, Albuquerque, NM 87131, USA Journal Article 2017 07 21 Using an identity for effective resistances, we find a relationship between the arithmetic-geometric index and the global ciclicity index. Also, with the help of majorization, we find tight upper and lower bounds for the arithmetic-geometric index. arithmetic-geometric index global cyclicity index majorization https://ijmc.kashanu.ac.ir/article_63436_8be152ec4953e9f50538a6eca5df34ad.pdf