Inverse degree index: exponential extension and applications Articles uri icon

publication date

  • May 2023


  • 5


  • 61

International Standard Serial Number (ISSN)

  • 0259-9791

Electronic International Standard Serial Number (EISSN)

  • 1572-8897


  • The inverse degree index, also called inverse index, first attracted attention through numerous conjectures generated by the computer programme Graffiti. Since then its relationship with other graph invariants has been studied by several authors. In this paper we obtain new inequalities involving the inverse degree index, and we characterize graphs which are extremal with respect to them. Also, a QSPR study of this index and its exponential extension was performed.


  • degree-based topological indices; exponential indices; inverse degree index; inverse topological index