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arXiv 2103.04769math.CO
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$ν$ -缔合多面体的$F$ -和$H$ -三角形

$F$- and $H$-Triangles for $ν$-Associahedra

Cesar Ceballos, Henri Mühle

摘要:

对于任何东北路径$ν$,我们定义两个二元多项式与$ν$ -associahedron:$F$ -和$H$ -三角形。我们证明组合,我们可以得到一个从另一个可逆的变量变换。这些多项式推广了F.~的经典$F$ -和$H$ -三角形。$A$型Chapoton。我们的证明是全新的,并提供了一个组合的解释之间的关系的$F$ -和$H$ -三角形的优势。

英文摘要:

For any northeast path $ν$, we define two bivariate polynomials associated with the $ν$-associahedron: the $F$- and the $H$-triangle. We prove combinatorially that we can obtain one from the other by an invertible transformation of variables. These polynomials generalize the classical $F$- and $H$-triangles of F.~Chapoton in type $A$. Our proof is completely new and has the advantage of providing a combinatorial explanation of the relation between the $F$- and $H$-triangle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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