A periodicity theorem for extensions of Weyl modules
arXiv:2211.06978 · doi:10.1007/s00209-024-03521-9
Abstract
In this paper we study periodicity phenomena for modular extensions between Weyl modules and between Weyl and simple modules of the general linear group that are associated to adding a power of the characteristic to the first parts of the involved partitions.
Referee's comments incorporated. To appear in Mathematische Zeitschrift