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math.RT2026
Additive diameters and covering complexity of irreducible representations
Urban Jezernik, Špela Špenko
Let a group act linearly on a finite-dimensional complex vector space . The group-additive diameter of a subspace is the least number of translates of whose s…
math.RT2025
Additive diameters of group representations
Urban Jezernik, Špela Špenko
We explore the concept of additive diameters in the context of group representations, unifying various noncommutative Waring-type problems. Given a finite-dimensional representatio…