V2EX clifford algebra

Clifford Algebra

释义 Definition(中文)

Clifford algebra(克利福德代数)是一类把“向量的内积(度量)”与“外积/楔积”的思想统一起来的代数结构。它在几何与物理中常用来描述旋转、反射、面积/体积元素(如双向量)以及自旋量(spinor)等对象。常见例子包括与欧几里得空间相关的几何代数,以及与闵可夫斯基时空相关的代数结构。

发音 Pronunciation(IPA)

/klfrd ldbr/

例句 Examples

Clifford algebra helps us describe rotations in space.
克利福德代数帮助我们描述空间中的旋转。

In physics, Clifford algebra provides a compact language for spinors and the Dirac equation.
在物理学中,克利福德代数为自旋量与狄拉克方程提供了一种简洁的表达语言。

词源 Etymology(中文)

“Clifford”来自英国数学家 William Kingdon Clifford(威廉金登克利福德)的姓氏。他在19世纪发展并推广了这类代数思想,将早期的Grassmann(格拉斯曼)外代数二次型/度量结合起来;“algebra”源自阿拉伯语 al-jabr(意为“复原、配平”),后来泛指“代数”这一数学体系。

相关词 Relaed Words

文学与名著中的用例 Literary Works(中文)

  • Pertti Lounesto《Clifford Algebras and Spinors》(专著):系统介绍克利福德代数与自旋量理论。
  • H. B. Lawson & M.-L. Michelsohn《Spin Geometry》(专著):在自旋几何与狄拉克算子框架中大量使用克利福德代数。
  • Chris Doran & Anthony Lasenby《Geometric Algebra for Physicists》(专著):以物理应用为主线,用几何代数(与克利福德代数密切相关)处理旋转、相对论与场论。
  • Roger Penrose《The Road to Reality》(科普/数学物理读物):在讨论自旋与几何结构时提及相关的克利福德代数思想。
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