A Very Short (Bijective!) Proof of Touchard's Catalan Identity
Regev, Amitai · Shar, Nathaniel · Zeilberger, Doron
Original · EN
A very short, bijective proof, of Touchard's Catalan identity is given, using Dyck paths.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.