Isogenies of Polynomial Formal Groups
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Robert Underwood
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Article
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1999
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Elsevier Science
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English
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Let H s H i, j be a Greither order in KC and let Spec H i, j ยช Spec B ยจp ลฝ . ยช Spec C be a resolution of Spec H i, j in the flat topology which appears as formal completions of B and C give rise to two-dimensional polynomial formal groups F F and G G, respectively. The given resolution will then t