Hopf-Galois structures on separable field extensions of degree pq
dc.contributor.author | Darlington, A | |
dc.date.accessioned | 2024-05-03T09:08:59Z | |
dc.date.issued | 2024-03-13 | |
dc.date.updated | 2024-04-26T13:19:42Z | |
dc.description.abstract | In 2020, Alabdali and Byott described the Hopf-Galois structures arising on Galois field extensions of squarefree degree. Extending to squarefree separable, but not necessarily normal, extensions L/K is a natural next step. One must consider now the interplay between two Galois groups G=Gal(E/K) and G′=Gal(E/L), where E is the Galois closure of L/K. In this paper, we give a characterisation and enumeration of the Hopf-Galois structures arising on separable extensions of degree pq where p and q are distinct odd primes. This work includes the results of Byott and Martin-Lyons who do likewise for the special case that p=2q+1. | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.format.extent | 107653- | |
dc.identifier.citation | Vol. 228, No. 7, article 107653 | en_GB |
dc.identifier.doi | https://doi.org/10.1016/j.jpaa.2024.107653 | |
dc.identifier.grantnumber | EP/T518049/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/135837 | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.rights | © 2024 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | en_GB |
dc.subject | Hopf-Galois structures | en_GB |
dc.subject | Field extensions | en_GB |
dc.subject | Groups of squarefree order | en_GB |
dc.title | Hopf-Galois structures on separable field extensions of degree pq | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2024-05-03T09:08:59Z | |
dc.identifier.issn | 0022-4049 | |
exeter.article-number | 107653 | |
dc.description | This is the final version. Available from Elsevier via the DOI in this record. | en_GB |
dc.description | Data availability: The research data supporting this publication are provided within this paper. | en_GB |
dc.identifier.eissn | 1873-1376 | |
dc.identifier.journal | Journal of Pure and Applied Algebra | en_GB |
dc.relation.ispartof | Journal of Pure and Applied Algebra, 228(7) | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2024-03-07 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2024-03-13 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2024-05-03T09:04:51Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2024-05-03T09:09:06Z | |
refterms.panel | B | en_GB |
refterms.dateFirstOnline | 2024-03-13 |
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under the CC BY license (http://creativecommons.org/licenses/by/4.0/).