Finite Interpretations of a Hyper-Catalan Series Solution to Polynomial Equations and Visualizations

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1. Verfasser: Mukewar, Pratham
Format: Preprint
Veröffentlicht: 2025
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author Mukewar, Pratham
author_facet Mukewar, Pratham
contents The solution to the general univariate polynomial equation has been sought for centuries. It is well known there is no general solution in radicals for degrees five and above. The hyper-Catalan numbers $C[m_2,m_3,m_4,\ldots]$ count the ways to subdivide a planar polygon into exactly $m_2$ triangles, $m_3$ quadrilaterals, $m_4$ pentagons, etc. Wildberger and Rubine (2025) show the generating series $\mathbf{S}$ of the hyper-Catalan numbers is a formal series zero of the general geometric polynomial (meaning, general except for a constant of $1$ and a linear coefficient of $-1$). Using a variant of the series solution to the geometric polynomial that has the number of vertices, edges, and faces explicitly shown, We prove their infinite series result may be viewed as a finite identity at each level, where a level is a truncation of $\mathbf{S}$ to a given maximum number of vertices, edges, or faces (bounded by degree). We illustrate this result, as well as the general correspondence between operations on sets of subdivided polygons and the algebra of polynomials, with figures and animations generated using Python.
format Preprint
id arxiv_https___arxiv_org_abs_2507_20003
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Finite Interpretations of a Hyper-Catalan Series Solution to Polynomial Equations and Visualizations
Mukewar, Pratham
Combinatorics
Commutative Algebra
Algebraic Geometry
Representation Theory
The solution to the general univariate polynomial equation has been sought for centuries. It is well known there is no general solution in radicals for degrees five and above. The hyper-Catalan numbers $C[m_2,m_3,m_4,\ldots]$ count the ways to subdivide a planar polygon into exactly $m_2$ triangles, $m_3$ quadrilaterals, $m_4$ pentagons, etc. Wildberger and Rubine (2025) show the generating series $\mathbf{S}$ of the hyper-Catalan numbers is a formal series zero of the general geometric polynomial (meaning, general except for a constant of $1$ and a linear coefficient of $-1$). Using a variant of the series solution to the geometric polynomial that has the number of vertices, edges, and faces explicitly shown, We prove their infinite series result may be viewed as a finite identity at each level, where a level is a truncation of $\mathbf{S}$ to a given maximum number of vertices, edges, or faces (bounded by degree). We illustrate this result, as well as the general correspondence between operations on sets of subdivided polygons and the algebra of polynomials, with figures and animations generated using Python.
title Finite Interpretations of a Hyper-Catalan Series Solution to Polynomial Equations and Visualizations
topic Combinatorics
Commutative Algebra
Algebraic Geometry
Representation Theory
url https://arxiv.org/abs/2507.20003