997 resultados para Fixed metaphorical expression
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Magdeburg, Univ., Med. Fak., Diss., 2011
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Magdeburg, Univ., Med. Fak., Diss., 2010
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Magdeburg, Univ., Medizin. Fakultät, Diss., 2007
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Magdeburg, Univ., Fak. für Naturwiss., Diss., 2012
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Magdeburg, Univ., Fak. für Naturwiss., Diss., 2012
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Magdeburg, Univ., Fak. für Naturwiss., Diss., 2013
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Magdeburg, Univ., Med. Fak., Diss., 2012
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Magdeburg, Univ., Med. Fak., Diss., 2014
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Magdeburg, Univ., Med. Fak., Diss., 2014
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Magdeburg, Univ., Fak. für Mathematik, Diss., 2014
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Magdeburg, Univ., Fak. für Naturwiss., Diss., 2014
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Magdeburg, Univ., Fak. für Informatik, Diss., 2015
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Magdeburg, Univ., Med. Fak., Diss., 2015
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Magdeburg, Univ., Med. Fak., Diss., 2015
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Let F be a free group of rank at least three. We show that some retracts of F previously studied by Martino-Ventura are not equal to the fixed subgroup of any group of automorphisms of F. This shows that, in F, there exist subgroups that are equal to the fixed subgroup of some set of endomorphisms but are not equal to the fixed subgroup of any set of automorphisms. Moreover, we determine the Galois monoids of these retracts, where, by the Galois monoid of a subgroup H of F, we mean the monoid consisting of all endomorphisms of F that fix H.