Euler's totient function applied to complete hypergroups

We study the Euler's totient function (called also the Euler's phi function) in the framework of finite complete hypergroups. These are algebraic hypercompositional structures constructed with the help of groups, and endowed with a multivalued operation, called hyperoperation. On them the...

Full description

Bibliographic Details
Main Authors: Andromeda Sonea, Irina Cristea
Format: Article
Language:English
Published: AIMS Press 2023-01-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2023388?viewType=HTML
_version_ 1811170984945778688
author Andromeda Sonea
Irina Cristea
author_facet Andromeda Sonea
Irina Cristea
author_sort Andromeda Sonea
collection DOAJ
description We study the Euler's totient function (called also the Euler's phi function) in the framework of finite complete hypergroups. These are algebraic hypercompositional structures constructed with the help of groups, and endowed with a multivalued operation, called hyperoperation. On them the Euler's phi function is multiplicative and not injective. In the second part of the article we find a relationship between the subhypergroups of a complete hypergroup and the subgroups of the group involved in the construction of the considered complete hypergroup. As sample application of this connection, we state a formula that relates the Euler's totient function defined on a complete hypergroup to the same function applied to its subhypergroups.
first_indexed 2024-04-10T17:07:03Z
format Article
id doaj.art-24d9c5363abb4b07ac8b175657e7efcb
institution Directory Open Access Journal
issn 2473-6988
language English
last_indexed 2024-04-10T17:07:03Z
publishDate 2023-01-01
publisher AIMS Press
record_format Article
series AIMS Mathematics
spelling doaj.art-24d9c5363abb4b07ac8b175657e7efcb2023-02-06T02:11:09ZengAIMS PressAIMS Mathematics2473-69882023-01-01847731774610.3934/math.2023388Euler's totient function applied to complete hypergroupsAndromeda Sonea0Irina Cristea 11. Department of Science, University of Life Sciences, Iaşi, Romania2. Centre for Information Technologies and Applied Mathematics, University of Nova Gorica, Nova Gorica 5000, SloveniaWe study the Euler's totient function (called also the Euler's phi function) in the framework of finite complete hypergroups. These are algebraic hypercompositional structures constructed with the help of groups, and endowed with a multivalued operation, called hyperoperation. On them the Euler's phi function is multiplicative and not injective. In the second part of the article we find a relationship between the subhypergroups of a complete hypergroup and the subgroups of the group involved in the construction of the considered complete hypergroup. As sample application of this connection, we state a formula that relates the Euler's totient function defined on a complete hypergroup to the same function applied to its subhypergroups.https://www.aimspress.com/article/doi/10.3934/math.2023388?viewType=HTMLeuler's totient functioncomplete hypergroupperiod of an elementheart of a hypergroup
spellingShingle Andromeda Sonea
Irina Cristea
Euler's totient function applied to complete hypergroups
AIMS Mathematics
euler's totient function
complete hypergroup
period of an element
heart of a hypergroup
title Euler's totient function applied to complete hypergroups
title_full Euler's totient function applied to complete hypergroups
title_fullStr Euler's totient function applied to complete hypergroups
title_full_unstemmed Euler's totient function applied to complete hypergroups
title_short Euler's totient function applied to complete hypergroups
title_sort euler s totient function applied to complete hypergroups
topic euler's totient function
complete hypergroup
period of an element
heart of a hypergroup
url https://www.aimspress.com/article/doi/10.3934/math.2023388?viewType=HTML
work_keys_str_mv AT andromedasonea eulerstotientfunctionappliedtocompletehypergroups
AT irinacristea eulerstotientfunctionappliedtocompletehypergroups