Set partitions as geometric words

نویسندگان

  • Toufik Mansour
  • Mark Shattuck
چکیده

Using an analytic method, we derive an alternative formula for the probability that a geometrically distributed word of length n possesses the restricted growth property. Equating our result with a previously known formula yields an algebraic identity involving alternating sums of binomial coefficients via a probabilistic argument. In addition, we consider refinements of our formula obtained by fixing the number of blocks, levels, rises, or descents.

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عنوان ژورنال:
  • Australasian J. Combinatorics

دوره 53  شماره 

صفحات  -

تاریخ انتشار 2012