Compositions of pattern restricted sets of permutations

نویسندگان

  • Michael H. Albert
  • Robert E. L. Aldred
  • Mike D. Atkinson
  • M. D. van Ditmarsch
  • Chris C. Handley
  • Derek A. Holton
  • D. J. McCaughan
چکیده

The composition of two pattern restricted classes X,Y is the set of all permutation products θφ where θ ∈ X,φ ∈ Y . This set is also defined by pattern restrictions. Examples are given where this set of restrictions is finite and where it is infinite. The composition operation is studied in terms of machines that sort and generate permutations. The theory is then applied to a multistage sorting network where each stage can exchange any number of adjacent disjoint pairs.

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عنوان ژورنال:
  • Australasian J. Combinatorics

دوره 37  شماره 

صفحات  -

تاریخ انتشار 2007