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Showing 2002 · math.COShow all
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math.CO2002★ 2 cited
Bijections for refined restricted permutations
Sergi Elizalde, Igor Pak
We present a bijection between 321- and 132-avoiding permutations that preserves the number of fixed points and the number of excedances. This gives a simple combinatorial proof of…
math.CO2002★ 1 cited
Mitosis recursion for coefficients of Schubert polynomials
Ezra Miller
Mitosis is a rule introduced by [Knutson-Miller, 2002] for manipulating subsets of the n by n grid. It provides an algorithm that lists the reduced pipe dreams (also known as rc-gr…