3 papers
math.RT2026
The Image of Functor Morphing
Ehud Meir
Functor morphing provides a method to translate complex representations of automorphism groups of finite modules over finite rings to representations of automorphism groups of func…
math.QA2025
Existence of integral Hopf orders in twists of group algebras
Juan Cuadra, Ehud Meir
We find a group-theoretical condition under which a twist of a group algebra, in Movshev's way, admits an integral Hopf order. Let be a (large enough) number field with ring of…
math.RT2025
Invariants that are covering spaces and their Hopf algebras
Ehud Meir
In a previous paper by the author a universal ring of invariants for algebraic structures of a given type was constructed. This ring is a polynomial algebra that is generated by ce…