Congruences in character tables of symmetric groups

特征标表中的高阶同余

Higher Congruences in Character Tables

受Peluse和Soundararajan相关研究启发，本文研究有限群特征标表两列模素数幂同余的条件问题。

Congruences via modular forms

We prove two congruences for the coefficients of power series expansions in t of modular forms where t is a modular function. As a result, we settle two recent conjectures of Chan, Cooper and Sica. Additionally, we provide a table of congruences for numbers which appear in similar power series expansions and in the study of integral solutions of Apery-like differential equations.

对称群和交错群的双重覆盖的旋特征的同余

Congruences for spin characters of the double covers of the symmetric and alternating groups

本文从算术角度研究对称群和交错群双重覆盖的旋特征生成函数，利用经典解析工具和初等生成函数操作，推导出许多 Ramanujan-like 同余。

Burnside-Brauer Theorem and Character Products in Table Algebras

In this paper, we first show that the irreducible characters of a quotient table algebra modulo a normal closed subset can be viewed as the irreducible characters of the table algebra itself. Furthermore, we define the character products for table algebras and give a condition in which the products of two characters are characters. Thereafter, as a main result we state and prove the Burnside-Brauer Theorem on finite groups for table algebras.

Character Sums and Congruences with n!

We estimate character sums with n!, on average, and individually. These bounds are used to derive new results about various congruences modulo a prime p and obtain new information about the spacings between quadratic nonresidues modulo p. In particular, we show that there exists a positive integer $n\ll p^{1/2+ε}, such that n! is a primitive root modulo p. We also show that every nonzero congruence class a \not \equiv 0 \pmod p can be represented as a product of 7 factorials, a \equiv n_1! ... n_7! \pmod p, where $\max \{n_i | i=1,... 7\}=O(p^{11/12+ε}), and we find the asymptotic formula for …