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Bijective enumeration of rook walks

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 نشر من قبل Alexander Haupt
 تاريخ النشر 2020
  مجال البحث
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In this paper we answer a question posed by R. Stanley in his collection of Bijection Proof Problems (Problem 240). We present a bijective proof for the enumeration of walks of length $k$ a chess rook can move along on an $mtimes n$ board starting and ending on the same square.



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