On the Bohr inequality

Yusuf Abu Muhanna, Rosihan M. Ali, Saminathan Ponnusamy

The Bohr inequality, first introduced by Harald Bohr in 1914, deals with finding the largest radius $r$, $0<r<1$, such that ${\sum }_{n=0}^{\infty }|a_n|r^n\le 1$ holds whenever $|\su…