Two Permutation Classes related to the Bubble Sort Operator
نویسندگان
چکیده
منابع مشابه
Two Permutation Classes related to the Bubble Sort Operator
We introduce the Dual Bubble Sort operator B̂ (a sorting algorithm such that, if σ = α 1β is a permutation, then B̂(σ) = 1α B̂(β)) and consider the set of permutations sorted by the composition B̂B, where B is the classical Bubble Sort operator. We show that this set is a permutation class and we determine the generating function of the descent and fixed point distributions over this class. Afterwa...
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ژورنال
عنوان ژورنال: The Electronic Journal of Combinatorics
سال: 2012
ISSN: 1077-8926
DOI: 10.37236/2556