Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras

In this paper, we introduce the concept of a generalized Hopf–Ore extension of a Hopf group-coalgebra and give the necessary and sufficient conditions for the Ore extension of a Hopf group-coalgebra to be a Hopf group-coalgebra. Moreover, an isomorphism theorem on generalized Hopf group-coalgebra Or...

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Main Authors: Ding-Guo Wang, Xing Wang
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/7/1167
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author Ding-Guo Wang
Xing Wang
author_facet Ding-Guo Wang
Xing Wang
author_sort Ding-Guo Wang
collection DOAJ
description In this paper, we introduce the concept of a generalized Hopf–Ore extension of a Hopf group-coalgebra and give the necessary and sufficient conditions for the Ore extension of a Hopf group-coalgebra to be a Hopf group-coalgebra. Moreover, an isomorphism theorem on generalized Hopf group-coalgebra Ore extensions is given and specific cases in a simple type called special Hopf group-coalgebra Ore extensions are also considered. Our results are generalizations of Hopf–Ore extensions on Hopf algebras and also are very useful to construct new Hopf group-coalgebras.
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spelling doaj.art-f452a007b37346d0abc2457162a941b32023-11-30T23:38:08ZengMDPI AGMathematics2227-73902022-04-01107116710.3390/math10071167Generalized Hopf–Ore Extensions of Hopf Group-CoalgebrasDing-Guo Wang0Xing Wang1School of Mathematical Sciences, Qufu Normal University, Qufu 273165, ChinaSchool of Mathematics and Computer Application Technology, Jining University, Qufu 273155, ChinaIn this paper, we introduce the concept of a generalized Hopf–Ore extension of a Hopf group-coalgebra and give the necessary and sufficient conditions for the Ore extension of a Hopf group-coalgebra to be a Hopf group-coalgebra. Moreover, an isomorphism theorem on generalized Hopf group-coalgebra Ore extensions is given and specific cases in a simple type called special Hopf group-coalgebra Ore extensions are also considered. Our results are generalizations of Hopf–Ore extensions on Hopf algebras and also are very useful to construct new Hopf group-coalgebras.https://www.mdpi.com/2227-7390/10/7/1167Hopf group-coalgebrasHopf–Ore extensionsOre extensions
spellingShingle Ding-Guo Wang
Xing Wang
Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
Mathematics
Hopf group-coalgebras
Hopf–Ore extensions
Ore extensions
title Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
title_full Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
title_fullStr Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
title_full_unstemmed Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
title_short Generalized Hopf–Ore Extensions of Hopf Group-Coalgebras
title_sort generalized hopf ore extensions of hopf group coalgebras
topic Hopf group-coalgebras
Hopf–Ore extensions
Ore extensions
url https://www.mdpi.com/2227-7390/10/7/1167
work_keys_str_mv AT dingguowang generalizedhopforeextensionsofhopfgroupcoalgebras
AT xingwang generalizedhopforeextensionsofhopfgroupcoalgebras