Noncommutative Catalan Numbers

Berenstein, A; Retakh, V

Berenstein, A (reprint author), Univ Oregon, Dept Math, Eugene, OR 97403 USA.

ANNALS OF COMBINATORICS, 2019; 23 (3-4): 527

Abstract

The goal of this paper is to introduce and study noncommutative Catalan numbers Cn which belong to the free Laurent polynomial algebra L n in n genera......

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