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Fixed points and stable images of endomorphisms for the free group of rank two

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 نشر من قبل Alan Logan
 تاريخ النشر 2020
  مجال البحث
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We give an algorithm which computes the fixed subgroup and the stable image for any endomorphism of the free group of rank two $F_2$, answering for $F_2$ a question posed by Stallings in 1984 and a question of Ventura.

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