A note lower bounds for the Estrada index.

Jonnathan Rodríguez Juan L. Aguayo Juan R. Carmona Akbar Jahanbani

Published in: Discret. Math. (2021)

Keyphrases

lower bound
upper bound
branch and bound algorithm
lower and upper bounds
branch and bound
lower bounding
objective function
optimal solution
np hard
index structure
database
indexing techniques
vc dimension
indexing method
data sets
e learning
databases
quadratic assignment problem