V2EX dirichlet l-function

Dirichlet L-function

释义 Definition

狄利克雷 L-函数:数论与解析数论中的一类复变量函数,通常记作 \(L(s,\chi)\)。它由狄利克雷特征 \(\chi\) 定义,用来研究算术级数(如 \(a, a+q, a+2q,\dots\))中素数的分布,并推广了黎曼ζ函数的思想。(该术语在更广义上也常被视为更一般“L-函数”理论的一个重要特例。)

发音 Pronunciation (IPA)

/drle l fkn/

例句 Examples

The Dirichlet L-function helps study primes in arithmetic progressions.
狄利克雷 L-函数有助于研究等差数列中的素数。

In analytic number theory, properties of a Dirichlet L-function \(L(s,\chi)\) are used to prove results about how primes are distributed modulo \(q\).
在解析数论中,狄利克雷 L-函数 \(L(s,\chi)\) 的性质常用来证明关于素数按模 \(q\) 分布的结论。

词源 Etymology

“Dirichlet”来自德国数学家Peter Gustav Lejeune Dirichlet(狄利克雷)的姓氏;“L-function”中的 L 常被理解为 “L 系列/函数(L-series /L-function)”的传统记法。狄利克雷在19世纪用这类级数与函数证明了著名结果:任意互素的等差数列中含有无穷多素数,因此该类函数以他命名。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • G. H. Hardy & E. M. Wright, An Introduction to the Theory of Numbers(讨论狄利克雷角色与相关的 \(L(s,\chi)\) 思想)
  • Harold Davenport, Multiplicative Number Theory(系统使用 Dirichlet L-functions 处理素数分布问题)
  • Tom M. Apostol, Introduction to Analytic Number Theory(介绍 Dirichlet characters 与 Dirichlet L-functions)
  • Henryk Iwaniec & Emmanuel Kowalski, Analytic Number Theory(大量出现并深入研究 Dirichlet L-functions)
  • J.-P. Serre, A Course in Arithmetic(在模形式与数论背景下提及相关 L-函数思想)
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