English

A four dimensional Jensen formula

Complex Variables 2022-04-26 v1

Abstract

We prove a Jensen formula for slice-regular functions of one quaternionic variable. The formula relates the value of the function and of its first two derivatives at a point with its integral mean on a three dimensional sphere centred at that point and with the disposition of its zeros. The formula can be extended to semiregular slice functions.

Keywords

Cite

@article{arxiv.1902.06485,
  title  = {A four dimensional Jensen formula},
  author = {Alessandro Perotti},
  journal= {arXiv preprint arXiv:1902.06485},
  year   = {2022}
}

Comments

Accepted for publication on Riv. Mat. Univ. Parma

R2 v1 2026-06-23T07:43:31.891Z