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    まげ店長 (magemanager@mathtod.online)'s status on Sunday, 08-Jan-2023 12:42:33 JSTまげ店長まげ店長
    in reply to

    #類体論へ至る道
    次に$f_1(X)$の既約な因数をとり
    $Ω$の拡大体$Ω’$をとると、同様に
     $f_1(X)=(X-α_2)f_2(X)$
     $f_2(X) \in Ω’$
    となりこれを続けると
     $f(X)=a(X-α_1)(X-α_2)…$
      $(X-α_n)$
     $(α \in K$の拡大体$)$
    となり
    $Ω(α_1,α_2,…,α_n)$を
    $f(X)$の$K$上の分解体という
    (証明終)

    In conversationSunday, 08-Jan-2023 12:42:33 JST from mathtod.onlinepermalink
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