On the characters of nilpotent blocks over small ground-fields (Q5958864)

\textit{M. Broué} and \textit{L. Puig} [Invent. Math. 56, 117-128 (1980; Zbl 0425.20008)] introduced nilpotent blocks and showed that the characters in such a block are in one-to-one correspondence with the characters of the defect group, provided that the ground field is large enough. Here, the author shows that such a correspondence still exists for small ground fields, but is more complicated.