The norm of the backward shift operator on $H^1$ is $\frac{2}{\sqrt{3}}$
Apparaît dans la collection : Shapes and shades of Analysis: in depth and beyond / Formes et nuances de l'analyse moderne
We show that the norm of the backward shift operator on $H^1$ is $\frac{2}{\sqrt{3}}$, and we identify the functions for which the norm is attainedJoint work with Ole Fredrik Brevig.