Séminaire Lotharingien de Combinatoire, 86B.14 (2022), 9 pp.
Per Alexandersson and Frether Getachew
An Involution on Derangements Preserving Excedances and Right-to-Left Minima
Abstract.
We give a bijective proof of a result by R. Mantaci and F. Rakotondrajao from 2003
regarding even and odd derangements with a fixed number of excedances.
We refine their result by also considering the set of right-to-left minima.
Received: November 25, 2021.
Accepted: March 4, 2022.
Final version: April 1, 2022.
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