Joerg Winkelmann

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math.CV2026

Invariants and Automorphisms for slice regular functions : the octonionic case

Cinzia Bisi, Joerg Winkelmann

We study automorphisms and invariants for the algebra $O$ of octonions and octonionic slice regular functions $f : O \to O$ .

math.CV2024

Invariants and Automorphisms for slice regular functions

Cinzia Bisi, Joerg Winkelmann

Let $A$ be one of the following Clifford algebras : $R_{2} ≅ H$ or $R_{3}$ . For the algebra $A$ , the automorphism group $A u t (A)$ and its invariants are w…