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  1. Home > Articles & Issues >
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  3. Combinatorial Hopf A ...
Conference paper

Combinatorial Hopf Algebras and Towers of Algebras

Nantel Bergeron ORCID (1), Thomas Lam (2), Huilan Li (3)
(1) Department of Mathematics and Statistics [Toronto]
(2) Department of Mathematics [Cambridge]
(3) Laboratoire de combinatoire et d'informatique mathématique [Montréal]
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May 10, 2017
Published on
December 31, 2007
Last modified on
March 31, 2025
Volume
DMTCS Proceedings vol. AJ, 20th Annual International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2008)
Proceedings
DOI
10.46298/dmtcs.3634
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Combinatorial Hopf Algebras and Towers of Algebras

Nantel Bergeron ORCID (1), Thomas Lam (2), Huilan Li (3)
(1) Department of Mathematics and Statistics [Toronto]
(2) Department of Mathematics [Cambridge]
(3) Laboratoire de combinatoire et d'informatique mathématique [Montréal]
Abstract
English
Bergeron and Li have introduced a set of axioms which guarantee that the Grothendieck groups of a tower of algebras $\bigoplus_{n \geq 0}A_n$ can be endowed with the structure of graded dual Hopf algebras. Hivert and Nzeutzhap, and independently Lam and Shimozono constructed dual graded graphs from primitive elements in Hopf algebras. In this paper we apply the composition of these constructions to towers of algebras. We show that if a tower $\bigoplus_{n \geq 0}A_n$ gives rise to graded dual Hopf algebras then we must have $\dim (A_n)=r^nn!$ where $r = \dim (A_1)$.
French
Bergeron et Li ont donné un ensemble d'axiomes qui garanti que les groupes de Grothendieck d'une tour d'algèbres $\bigoplus_{n \geq 0}A_n$ peuvent être dotés d'une structure d'algèbres de Hopf graduées duales. Hivert et Nzeutzhap, et indépen\-damment Lam et Shimozono, ont construit des graphes gradués duals à partir d'éléments primitifs dans des algèbres de Hopf. Dans cet article, nous appliquons la composition de ces constructions aux tours des algèbres. Nous prouvons que si une tour $\bigoplus_{n \geq 0}A_n$ donne des algèbres de Hopf graduées duales, alors nous devons avoir $\dim (A_n)=r^nn!$ où $r = \dim (A_1)$.
Keywords
  • [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • graded algebra
  • Hopf algebra
  • Grothendieck group
  • dual graded graph
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