V2EX standard young tableau

Standard Young Tableau

Definition / 释义

标准杨表(Standard Young tableau,简称 SYT):一种把数字 1 到 n 填入某个“杨图(Young diagram)”形状的格子里的排列方式,要求每一行从左到右递增,并且每一列从上到下递增。常用于组合数学对称群表示论中。

Pronunciation (IPA) / 发音(IPA)

/stndrd j tblo/

Examples / 例句

A standard Young tableau has increasing rows and columns.
标准杨表要求行与列都按递增顺序排列。

Using the hook-length formula, we can count how many standard Young tableaux a given shape has.
用钩长公式(hook-length formula),我们可以计算某个形状对应的标准杨表数量。

Etymology / 词源

Young”来自英国数学家 Alfred Young(阿尔弗雷德杨)的姓氏;他在研究对称群与分拆(partition)时引入了相关图形与表格工具。“tableau”源自法语,意为“表格/图表”。“stadard”在这里表示一种“规范填法”:使用 1 到 n 且严格满足行列递增。(该术语在不同语境下还有更广义的“杨表”用法,但最常见的是此处的严格递增版本。)

Related Words / 相关词

Literary Works / 文学与著作

  • William Fulton, Young Tableaux: With Applications to Representation Theory and Geometry
  • Richard P. Stanley, Enumerative Combinatorics, Vol. 2
  • Bruce E. Sagan, The Symmetric Group: Representations, Combinatorial Algorithms, and Symmetric Functions
  • I. G. Macdonald, Symmetric Functions and Hall Polynomials
  • Gordon James & Adalbert Kerber, The Representation Theory of the Symmetric Group
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