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Isometries of combinatorial Banach spaces

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 نشر من قبل Adi Tcaciuc
 تاريخ النشر 2019
  مجال البحث
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We prove that every isometry between two combinatorial spaces is determined by a permutation of the canonical unit basis combined with a change of signs. As a consequence, we show that in the case of Schreier spaces, all the isometries are given by a change of signs of the elements of the basis. Our results hold for both the real and the complex cases.



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