My Mathematical Genealogy in The Mathematics Genealogy Project.
AA Davydov < Arnold < Kolmogorov < Luzin < Egorov < Bugaev < Weierstrass & Kummer & Liouville < ... < GAUSS, Lagrange, Euler, Bernoulli, Leibniz, ...
H Mena-Matos < J Basto-Gonçalves < PE Crouch < Brockett < Mesarovic
My Erdős Number is 4, MathSciNet.