V2EX whittaker function

Whittaker Function

定义 Definition

Whittaker function(惠特克函数)是数学物理与特殊函数理论中的一类特殊函数,通常记为 \(M_{\kappa,\mu}(z)\)\(W_{\kappa,\mu}(z)\)。它们是Whittaker微分方程的解,并与合流超几何函数密切相关,常用于量子力学、波动方程、库仑势问题等解析解表达。(该术语也可能在不同教材中以略有不同的参数记号出现。)

发音 Pronunciation (IPA)

/wtkr fkn/

例句 Examples

The Whittaker function appears in many problems in mathematical physics.
惠特克函数出现在许多数学物理问题中。

By transforming the radial equation into Whittaker’s form, the solution can be written in terms of \(W_{\kappa,\mu}(z)\) with parameters determined by boundary conditions.
通过把径向方程变换为惠特克形式,解可以用 \(W_{\kappa,\mu}(z)\) 表示,其参数由边界条件确定。

词源 Etymology

“Whittaker function”以英国数学家 E. T. Whittaker(ET惠特克)命名。该函体系在20世纪初的特殊函数与分析理论中得到系统化整理,后来广泛进入数学物理与工程应用中;名称属于典型的“以提出/整理者命名”的数学术语。

相关词 Related Words

文献与著作中的出现 Literary / Notable Works

  • Whittaker & Watson,《A Course of Modern Analysis》经典分析教材中讨论相关方程与特殊函数体系。
  • Abramowitz & Stegun,《Handbook of Mathematical Functions》作为标准参考手册收录并给出性质与公式。
  • NIST,《*Digital Library of Mathematical Functions (DLMF)*》现代权威在线参考,系统整理 \(M_{\kappa,\mu}\) 与 \(W_{\kappa,\mu}\) 的定义与性质。
  • Bateman Manuscript Project,《Higher Transcendental Functions》专题性整理高等超越函数,包括惠特克函数相关内容。
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