The local lifting problem for dihedral groups
Let G = D p be the dihedral group of order 2 p , where p is an odd prime. Let k be an algebraically closed field of characteristic p . We show that any action of G on the ring k [ [ y ] ] can be lifted to an action on R [ [ y ] ] , where R is some complete discrete valuation ring with residue field...
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Veröffentlicht in: | Duke mathematical journal 2006-09, Vol.134 (3), p.421-452 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | Let G = D p be the dihedral group of order 2 p , where p is an odd prime. Let k be an algebraically closed field of characteristic p . We show that any action of G on the ring k [ [ y ] ] can be lifted to an action on R [ [ y ] ] , where R is some complete discrete valuation ring with residue field k and fraction field of characteristic 0 |
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ISSN: | 0012-7094 1547-7398 |
DOI: | 10.1215/S0012-7094-06-13431-2 |