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COMBINATORICS
2007
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The Initial Involution Patterns of Permutations
For a permutation π = π1π2 · · · πn ∈ Sn and a positive integer i ≤ n, we can view π1π2 · · · πi as an element of Si by order-preserving relabeling. The j-set of ...
Dongsu Kim, Jang Soo Kim