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arXiv 0710.3744math.COmath.RT
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组合霍普夫代数与代数塔

Combinatorial Hopf algebras and Towers of Algebras

Nantel Bergeron, Thomas Lam, Huilan Li

摘要:

Bergeron和Li引入了一组公理,保证了代数塔$\bigoplus_{n\ge0}A_n$的Grothendieck群可以被赋予分次对偶霍普夫代数的结构. Hivert和Nzeutzhap,以及Lam和Shimozono分别从霍普夫代数的本原元构造了对偶分次图.在本文中,我们将这些结构的组成,以塔代数。证明了如果塔$\bigoplus_{n\ge0}A_n$产生分次对偶霍普夫代数,则一定有$\dim(A_n)=r^nn!$,其中$r = \dim(A_1)$ .

英文摘要:

Bergeron and Li have introduced a set of axioms which guarantee that the Grothendieck groups of a tower of algebras $\bigoplus_{n\ge0}A_n$ 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 $\bigoplus_{n\ge0}A_n$ gives rise to graded dual Hopf algebras then we must have $\dim(A_n)=r^nn!$ where $r = \dim(A_1)$.

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