* authors:
Gerhard Hiss, J\"urgen M\"uller, Felix Noeske, and Jon Thackray

* title:
The Brauer characters of the sporadic simple Harada-Norton group
and its automorphism group in characteristics~$2$ and~$3$

* abstract:
We determine the $2$-modular and $3$-modular character tables of the
sporadic simple Harada-Norton group and its automorphism group.

* status:
submitted