Publications by Year: 2021

2021
Maliakas M, Stergiopoulou D-D. On homomorphisms involving a hook Weyl module. Journal of Algebra [Internet]. 2021;585:1-24. Publisher's VersionAbstract
Let $K$ be an infinite field of positive characteristic. We classify all homomorphisms between Weyl modules for $GL_n(K)$, where one of the partitions is a hook. As a consequence we obtain a nonvanishing result concerning homomorphisms between Weyl modules for algebraic groups of type B, C and D when one of the partitions is a hook.