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dc.contributor.authorSkjøtskift, Torgeireng
dc.date.accessioned2015-02-05T11:09:19Z
dc.date.available2015-02-05T11:09:19Z
dc.date.issued2015-01-05eng
dc.date.submitted2015-01-05eng
dc.identifier.urihttp://hdl.handle.net/1956/9347
dc.description.abstractWe explore the theory of cohomology of groups and the classification of group extensions with abelian kernel. We then look at the group extensions that underlie the truncated Witt vectors on the truncation set {1,p} where p is a prime number. It turns out that we can do without the multiplicative structure on the source ring A by factoring the extension's representing cocycle through a map into the p-fold tensor product of A divided out by the C_p-action.en_US
dc.format.extent437524 byteseng
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherThe University of Bergeneng
dc.subjectKohomologiteorinob
dc.titleOn the extension giving the truncated Witt vectorseng
dc.typeMaster thesiseng
dc.type.degreeMasternob
dc.type.courseMAT399eng
dc.subject.archivecodeMastergradeng
dc.subject.nus753199eng
dc.type.programMAMN-MATeng
dc.rights.holderCopyright the author. All rights reserved
bora.peerreviewedNot peer reviewedeng
bora.accessRightsinfo:eu-repo/semantics/openAccesseng
noa.realfagstermhttp://data.ub.uio.no/realfagstermer/c005227


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