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Bibliographic Details
Main Author: Wang, Haiyang
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2406.01986
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author Wang, Haiyang
author_facet Wang, Haiyang
contents The classical modular polynomials $Φ_\ell(X,Y)$ give plane curve models for the modular curves $X_0(\ell)/\mathbb{Q}$ and have been extensively studied. In this article, we provide closed formulas for $\ell$ nontrivial coefficients of the classical modular polynomials $Φ_\ell(X,Y)$ in terms of the Fourier coefficients of the modular invariant function $j(z)$ for a prime $\ell$. Our interest in the formulas were motivated by our conjectures on congruences modulo powers of the primes $2,3$ and $5$ satisfied by the coefficients of these polynomials. We deduce congruences from these formulas supporting the conjectures.
format Preprint
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institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Congruence properties of the coefficients of the classical modular polynomials
Wang, Haiyang
Number Theory
The classical modular polynomials $Φ_\ell(X,Y)$ give plane curve models for the modular curves $X_0(\ell)/\mathbb{Q}$ and have been extensively studied. In this article, we provide closed formulas for $\ell$ nontrivial coefficients of the classical modular polynomials $Φ_\ell(X,Y)$ in terms of the Fourier coefficients of the modular invariant function $j(z)$ for a prime $\ell$. Our interest in the formulas were motivated by our conjectures on congruences modulo powers of the primes $2,3$ and $5$ satisfied by the coefficients of these polynomials. We deduce congruences from these formulas supporting the conjectures.
title Congruence properties of the coefficients of the classical modular polynomials
topic Number Theory
url https://arxiv.org/abs/2406.01986