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Surface groups are flexibly stable

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 نشر من قبل Arie Levit
 تاريخ النشر 2019
  مجال البحث
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We show that surface groups are flexibly stable in permutations. Our method is purely geometric and relies on an analysis of branched covers of hyperbolic surfaces. Along the way we establish a quantitative variant of the LERF property for surface groups which may be of independent interest.

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