C. Bisi

activity

20242026

collaborators

5 papers

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.CV2026

Multipoint Schwarz-Pick Lemma for the quaternionic case

Cinzia Bisi, Davide Cordella

Following ideas by Beardon, Minda and Baribeau, Rivard, Wegert in the context of the complex Schwarz-Pick Lemma, we use iterated hyperbolic difference quotients to prove a quaterni…

math.AG2025

Forms and Complex Manifolds

Cinzia Bisi, Paolo Cascini, Luca Tasin

We study the intersection form $F_{X}$ on the second cohomology group $H^{2} (X, Z)$ of a compact KÃ¤hler manifold $X$ of dimension $n$ . Although the structure of $F_{X}$ is rela…

math.CV2025

Division algebras of slice-Nash functions

Cinzia Bisi, Antonio Carbone

The purpose of this paper is to introduce the notion of Nash functions in the context of slice regular functions of one quaternionic or octonionic variable. We begin with a detaile…

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…