963 research outputs found
Inequalities on Topological Indices
Topological indices have been widely used in different fields associated with
scientific research. They are recognized as useful tools in applied research
in Chemistry, Ecology, Biology, Physics, among others.
For many years, scientists have been trying to improve the predictive power
of the famous Randi’c index. This led to the introduction and study of new
topological descriptors that correlate or improve the level of prediction of the
Randi’c index. Among the most commonly used descriptors are the Inverse
index, the first general Zagreb index and the recently introduced Arithmetic-
Geometric index. In this work we study the mathematical properties and
relationships of the aforementioned topological indices.Programa de Doctorado en IngenierĂa Matemática por la Universidad Carlos III de MadridPresidente: Domingo de Guzmán Pestana Galván.- Secretaria: Ana Portilla Ferreira.- Vocal: Eva TourĂs Loj
Topological indices and f-polynomials on some graph products
We Obtain Inequalities Involving Many Topological Indices In Classical Graph Products By Using The F-Polynomial. In Particular, We Work With Lexicographic Product, Cartesian Sum And Cartesian Product, And With First Zagreb, Forgotten, Inverse Degree And Sum Lordeg Indices.Gobierno de Españ
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