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Research on algorithm to compute special values for non holomorphic Eisenstein series

Research on algorithm to compute special values for non holomorphic Eisenstein series
非全纯艾森斯坦级数特殊值计算算法研究
批准号:
15540008
负责人:
SATOH Takakazu
金额:
$1.41万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2003
资助国家:
日本
项目状态:
已结题
起止时间:
2003 至 2005

项目摘要

项目成果

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中文摘要
翻译
本文的主要研究成果分为三类:(1)插值多项式成对求逆的权值的界,成对求逆不仅是椭圆曲线密码学的一个重要问题,而且对于任何基于Diffie-Hellman问题难度的密码体制都是一个重要的问题。在研究中,我们得到了插值多项式的一个次数界。此外,插值多项式的权重是大特征素域上58%的椭圆曲线的最大可能值。证明基于将多项式插值系数表示为某些全纯和非全纯Eisenstein级数的特定值的公式.(2)Galois表示和同余公式:证明了具有小导体N的有理数域的二维mod2 Galois表示的不存在性.作为应用,证明了2N级模型空间上的Hecke作用在特征2中幂零.作为应用,证明了某些模形式的傅立叶系数和某些组合量的同余.(3)推广的Mahler测度和Zeta函数的特殊值:将经典的Mahler测度推广到多元积分和.对特殊函数的显式计算给出了Riemann Zeta函数在正奇数时的特异值的一个公式。
英文摘要
Major results of the research are classified into three classes.(1)Bounds of weights of interpolating polynomials for pairing inversion.Pairing inversion is an important problem not only for elliptic curve cryptography but also for any cryptosystem based on difficulty of the Diffie-Hellman problem on a subgroup of the multiplicative group of finite fields which is an image of the pairing. In the research, we obtained a bound of degree of interpolating polynomials. Moreover, the weight of the interpolating polynomial is the maximum possible value for 58% of elliptic curves over a prime field of large characteristic. The proof is based on the formula which expresses coefficients of polynomial interpolation as a special values of certain holomorphic and non-holomorphic Eisenstein series.(2)Galois representations and congruence formulas :Non-existence is proved for 2-dimensional mod 2 Galois representations of the rational number field with small conductor N. As an application, it is shown that the Hecke action on the space of modular forms of level 2N is nilpotent in characteristic 2. As an application, congruences for Fourier coefficients of some modular forms and some combinatorial quantities are proved.(3)Generalized Mahler measure and special values of zeta functions :Generalization of the classical Mahler measure to multivariate integrand is given. Explicit computation for particular functions gives a formula for special values of the Riemann zeta function at positive odd integers.
期刊论文(39)
专著(0)
科研奖励(0)
会议论文
First Variation of Selberg zeta functions and Variational trace formulas
Selberg zeta 函数的第一变体和变分迹公式
DOI: --
发表时间: 2003
期刊: J. Ramanujan Math. Soc. 18
影响因子: --
作者: [Y.Gon, H.Oyanagi, Y.Gon]
通讯作者: Y.Gon
DOI: --
发表时间: 2003
期刊: Documenta Math. Extra Volume : Kazuya Kato's Fiftieth Birthday
影响因子: --
作者: [H.Moon, Y.Taguchi]
通讯作者: Y.Taguchi
A relation between some finiteness conjecture sm Galois representations
一些有限猜想 sm 伽罗瓦表示之间的关系
DOI: --
发表时间: 2004
期刊: Proc. Number Theory Camp held at POSTECH
影响因子: --
作者: [S.Hosono, B.H.Lian, K.Oguiso, S.-T.Yau, Y.Taguchi]
通讯作者: Y.Taguchi
Computing zeta functions for ordinary formal groups over finite fields.
计算有限域上普通形式群的 zeta 函数。
DOI: --
发表时间: 2003
期刊: Discr.Appl.Math. 130
影响因子: --
作者: [T.Satoh, Y.Taguchi]
通讯作者: Y.Taguchi
21
    On security of pairing based elliptic curve cryptosystems in view of number theory
    • 批准号:
      18340005
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $5.09万
    • 财政年份:
      2006
    • 负责人:
      SATOH Takakazu
    • 依托单位:
    Number theory for positive characteristics and its application to elliptic curve cryptography
    • 批准号:
      12640009
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.43万
    • 财政年份:
      2000
    • 负责人:
      SATOH Takakazu
    • 依托单位:
    海外基金