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Hauptverfasser: Ghiloni, Riccardo, Stoppato, Caterina
Format: Preprint
Veröffentlicht: 2024
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Online-Zugang:https://arxiv.org/abs/2408.01523
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author Ghiloni, Riccardo
Stoppato, Caterina
author_facet Ghiloni, Riccardo
Stoppato, Caterina
contents This work proposes a unified theory of regularity in one hypercomplex variable: the theory of $T$-regular functions. In the special case of quaternion-valued functions of one quaternionic variable, this unified theory comprises Fueter-regular functions, slice-regular functions and a recently-discovered function class. In the special case of Clifford-valued functions of one paravector variable, it encompasses monogenic functions, slice-monogenic functions, generalized partial-slice monogenic functions, and a variety of function classes not yet considered in literature. For $T$-regular functions over an associative $*$-algebra, this work provides integral formulas, series expansions, an Identity Principle, a Maximum Modulus Principle and a Representation Formula. It also proves some foundational results about $T$-regular functions over an alternative but nonassociative $*$-algebra, such as the real algebra of octonions.
format Preprint
id arxiv_https___arxiv_org_abs_2408_01523
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A unified theory of regular functions of a hypercomplex variable
Ghiloni, Riccardo
Stoppato, Caterina
Complex Variables
30G35 (Primary) 16P10, 17D05 (Secondary)
This work proposes a unified theory of regularity in one hypercomplex variable: the theory of $T$-regular functions. In the special case of quaternion-valued functions of one quaternionic variable, this unified theory comprises Fueter-regular functions, slice-regular functions and a recently-discovered function class. In the special case of Clifford-valued functions of one paravector variable, it encompasses monogenic functions, slice-monogenic functions, generalized partial-slice monogenic functions, and a variety of function classes not yet considered in literature. For $T$-regular functions over an associative $*$-algebra, this work provides integral formulas, series expansions, an Identity Principle, a Maximum Modulus Principle and a Representation Formula. It also proves some foundational results about $T$-regular functions over an alternative but nonassociative $*$-algebra, such as the real algebra of octonions.
title A unified theory of regular functions of a hypercomplex variable
topic Complex Variables
30G35 (Primary) 16P10, 17D05 (Secondary)
url https://arxiv.org/abs/2408.01523