V2EX measure theory

Measure Theory

释义 Definition

测度论:研究如何在抽象集合上定义和比较“大小/体积”(测度)的数学分支,并以此建立勒贝格积分、现代概率论与部分泛函分析的基础。(在更广义的语境中也可指与“测度、可测性、积分”相关的一整套理论框架。)

发音 Pronunciation (IPA)

/mr θiri/

例句 Examples

Measure theory provides the foundation for modern probability.
测度论为现代概率论提供了基础。

Using measure theory, we can define the Lebesgue integral and handle limits of functions more rigorously than with Riemann integration.
借助测度论,我们可以定义勒贝格积分,并且比黎曼积分更严格地处理函数极限问题。

词源 Etymology

measure 源自拉丁语 mensura(“测量、尺度”),经古法语进入英语;theory 源自希腊语 theōria(“观察、思考、理论”)。合起来的 measure theory 字面即“关于测度/测量的理论”,在数学中专指把“长度、面积、体积”这类直观概念抽象化并推广到更一般集合上的理论。

相关词 Related Wods

文献与作品 Literary Works

  • Measure Theory Paul R. Halmos
  • Real and Complex Analysis Walter Rudin
  • Probability and Measure Patrick Billingsley
  • An Introduction to Probability Theory and Its Applications William Feller
  • Real Analysis: Modern Techniques and Their Applications Gerald B. Folland
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