Topological indices derived from local invariants of some normal and iso-alkanes

摘要

In this paper is presented a method for obtaining the local invariants of chemical graphs characteristic of organic compounds (i. e. n-heptane isomers) by combining computational programs with specific mathematical methods. Was obtained an operational degeneration for 2, 3- and 3, 3-dimethylpentane, this obtaining very rarely in such situations.