Definition:Subadditive Sequence

Definition

A real sequence $\sequence {a_n}_{n \ge 1}$ is subadditive if and only if:

$a_{m + n} \le a_m + a_n$

for all $m, n \ge 1$.

Also see

• Fekete's Subadditive Lemma

Sources

• 2015: Michel Coornaert: Topological Dimension and Dynamical Systems: $6.2.$ Subadditive Sequences