We study the connected component of the special fiber of the Neron model of a torus split over a tamely ramified extension. It turns out to be a product of Witt vectors of finite length, explicitly calculable. We are thus able to correct a result presented in Kunyavskii and Sansuc (C. R. Acad. Sci. Paris, Ser. 1324 (1997) 307-312). (C) 2003 Academie des sciences. Publie par Elsevier SAS. Tous droits reserves.
机构:
Loyola Univ Maryland, Dept Math & Stat, 4501 North Charles St, Baltimore, MD 21210 USALoyola Univ Maryland, Dept Math & Stat, 4501 North Charles St, Baltimore, MD 21210 USA
机构:
John Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USAJohn Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USA
Duncan, Drew
Leep, David B.
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Univ Kentucky, Dept Math, Lexington, KY 40506 USAJohn Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USA
机构:
John Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USAJohn Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USA
Duncan, Drew
Leep, David B.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Kentucky, Dept Math, Lexington, KY 40506 USAJohn Carroll Univ, Dept Math Comp Sci & Data Sci, University Hts, OH 44118 USA