Authors prove a compensation formula for γ on A5 direct products with nilpotent groups and give explicit N making γ(A5 × N) = 9/2, disproving the A5-characterization conjecture.
Ring Theory Seminar, Department of Mathematics and Scientific Computing, University of Graz, slides dated 12 June 2025
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A compensation theorem for the Sylow-integral invariant and counterexamples to an \texorpdfstring{$A_5$}{A5}-characterization conjecture
Authors prove a compensation formula for γ on A5 direct products with nilpotent groups and give explicit N making γ(A5 × N) = 9/2, disproving the A5-characterization conjecture.