Singletons and adjacencies of set partitions of type B

نویسندگان

  • William Y. C. Chen
  • David G. L. Wang
چکیده

We show that the joint distribution of the number of singleton pairs and the number of adjacency pairs is symmetric over the set partitions of type Bn without zero-block, in analogy with the result of Callan for ordinary partitions.

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عنوان ژورنال:
  • Discrete Mathematics

دوره 311  شماره 

صفحات  -

تاریخ انتشار 2011