3 papers
math.RT2025
Extensions of characters in type D and the inductive McKay condition, II
Britta Späth
We determine the action of the automorphism group Aut on the set of irreducible characters Irr for all finite quasi-simple groups . For groups of Lie type, this includ…
math.RT2025
Towards the inductive McKay--Navarro Condition for groups of Lie type
Lucas Ruhstorfer, A. A. Schaeffer Fry, Britta Späth +1
We gather tools for proving the inductive McKay--Navarro (or Galois--McKay) condition for groups of Lie type and odd primes. We use this to establish a bijection in the case of qua…
math.RT2025
Extensions of characters in type D and the inductive McKay condition, I
Britta Späth
This is a contribution to the study of as an -set for a finite quasi-simple group. Focusing on the last open case of groups of…