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M. Anwar

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Preprint Jul 2026

Counterexamples to Norm Conjectures of Wehlau in Modular Invariant Theory

Let $G$ be a finite group and let $V$ be a finite-dimensional $G$-module over a field $k$. We construct explicit counterexamples in characteristic $2$ to conjectures of Wehlau concerning norms. We give faithful four-dimensional representations of $C_2^3$ and $C_2^4$ over $\mathbb F_8$ for which every nonlinear orbit no...

M. Anwar · 0 citations