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Bibliographic Details
Main Authors: Liu, Chunlin, Moreno, Giovanni, Shi, Haipan
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.22788
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Table of Contents:
  • We study the equivalence classes of slice-regular functions $f:Ω\to\mathbb{H}$ on a symmetric slice domain $Ω$, and of their subclass made of polynomial slice-regular functions, with respect to the natural action of $\mathrm{PGL}(2,\mathbb{H})$ and its subgroups, by employing the twistor construction. In particular, we characterize slice--regular functions whose twistor lift is planar and belongs to a given orbit, and we find normal classes of slice-regular polynomials with respect to the action of a parabolic subgroup of $\mathrm{GL}(2,\mathbb{H})$.