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Cyclic sieving for longest reduced words in the hyperoctahedral group

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 نشر من قبل Luis Serrano
 تاريخ النشر 2009
  مجال البحث
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We show that the set R(w_0) of reduced expressions for the longest element in the hyperoctahedral group exhibits the cyclic sieving phenomenon. More specifically, R(w_0) possesses a natural cyclic action given by moving the first letter of a word to the end, and we show that the orbit structure of this action is encoded by the generating function for the major index on R(w_0).



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