Deformation of Rigid Conjugate Self-dual Galois Representations

In this article,we study deformations of conjugate self-dual Galois representations.The study is twofold.First,we prove an R=T type theorem for a conjugate self-dual Galois representation with coefficients in a finite field,satisfying a certain property called rigid.Second,we study the rigidity property for the family of residue Galois representations attached to a symmetric power of an elliptic curve,as well as to a regular algebraic conjugate self-dual cuspidal representation.

环F_p+uF_p上的广义Reed-Muller码

Reed-Muller码是一类非常重要的代数码,具有很好的代数和组合性质。文章首次将Reed-Muller码的概念引入环Fp+uFp上,定义了更一般的Reed-Muller码URM(p,r,m),给出了它的迹表示,并研究了它的对偶码以及两者之间的关系。特别地,当p=2时,得到了一些更好的性质。

Fermat最后定理——历史和证明简介

本文旨在介绍Fermat最后定理的历史和Wiles最近所给的证明。首先简介了其在代数数论的发展过程中所起的作用,然后介绍椭圆曲线的基本概念,叙述Taniyama-Weil猜想,即任一椭圆曲线都是模的。进而介绍Ribet的工作,他证明了若Taniyama-Weil猜想对半稳定的椭圆曲线成立则Fermat最后定理成立。最后介绍l-adic Galois表示的概念及Wiles定理,即半稳定的椭圆曲线都是模的,从而这和Ribet的工作一起蕴含了Fermat最后定理。

The 0 ,1 - Distribution of the First CoordinateSequences Derived from ML- Sequences over Z/(2~e)

The 0,1 distribution of the first coordinate sequences derived from the maximal lenght sequences (ML sequences) over Z/(2~e) is exactly given.

n(≥5)边形的最大面极一般不能用边长的根式表示

本文用Galois理论证明:多边形的最大面积一般不能用边长的根式表示。

Multiplicity one, local and global conjugacy

The issue of local and global conjugacy is closely related to the multiplicity one property in representation theory and the Langlands program. In this article we give first families of connected instances for SO2N where the multiplicity one fails in both aspects of representation theory and automorphic forms with certain assumptions on the Langlands functoriality.

关于Diophantine方程x^n+2~ky^n=pz^2

设p为奇素数且对任意的整数m,d,p≠(2m±1)/d2,则对任意的素数n>p8p2,方程xn+2kyn=pz2,k≥2没有整数解(x,y,z)使得x,y,z两两互素且均不为0.

Variables separated equations:Strikingly different roles for the Branch Cycle Lemma and the finite simple group classification

Davenport's Problem asks:What can we expect of two polynomials,over Z,with the same ranges on almost all residue class fields? This stood out among many separated variable problems posed by Davenport,Lewis and Schinzel.By bounding the degrees,but expanding the maps and variables in Davenport's Problem,Galois stratification enhanced the separated variable theme,solving an Ax and Kochen problem from their Artin Conjecture work.Denef and Loeser applied this to add Chow motive coefficients to previously introduced zeta functions on a diophantine statement.By restricting the variables,but leaving the degrees unbounded,we found the striking distinction between Davenport's problem over Q,solved by applying the Branch Cycle Lemma,and its generalization over any number field,solved by using the simple group classification.This encouraged Thompson to formulate the genus 0 problem on rational function monodromy groups.Guralnick and Thompson led its solution in stages.We look at two developments since the solution of Davenport's problem.Stemming from MacCluer's 1967 thesis,identifying a general class of problems,including Davenport's,as monodromy precise.R(iemann)E(xistence)T(heorem)'s role as a converse to problems generalizing Davenport's,and Schinzel's (on reducibility).We use these to consider:Going beyond the simple group classification to handle imprimitive groups,and what is the role of covers and correspondences in going from algebraic equations to zeta functions with Chow motive coefficients.

A note on Higgs-de Rham flows of level zero

The notion of Higgs-de Rham flows was introduced by Lan et al.(2019),as an analogue of Yang-Mills-Higgs flows in the complex nonabelian Hodge theory.In this paper we investigate a small part of this theory,and study those Higgs-de Rham flows which are of level zero.We improve the original definition of level-zero Higgs-de Rham flows(which works for general levels),and establish a Hitchin-Simpson type correspondence between such objects and certain representations of fundamental groups in positive characteristic,which generalizes a classical results of Katz(1973).We compare the deformation theories of two sides in the correspondence,and translate the Galois action on the geometric fundamental groups of algebraic varieties defined over finite fields into the Higgs side.

Derivatives of Frobenius and Derivatives of Hodge–Tate Weights

In this paper we study the derivatives of Frobenius and the derivatives of Hodge–Tate weights for families of Galois representations with triangulations.We generalize the Fontaine–Mazur L-invariant and use it to build a formula which is a generalization of the Colmez–Greenberg–Stevens formula.For the purpose of proving this formula we show two auxiliary results called projection vanishing property and"projection vanishing implying L-invariants"property.