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Contraction method and Lambda-Lemma

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 نشر من قبل Joa Weber
 تاريخ النشر 2015
  مجال البحث
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 تأليف Joa Weber




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We reprove the $lambda$-Lemma for finite dimensional gradient flows by generalizing the well-known contraction method proof of the local (un)stable manifold theorem. This only relies on the forward Cauchy problem. We obtain a rather quantitative description of (un)stable foliations which allows to equip each leaf with a copy of the flow on the central leaf -- the local (un)stable manifold. These dynamical thickenings are key tools in our recent work [Web]. The present paper provides their construction.



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