<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>曲率 on s-ai-unix's Blog</title><link>https://s-ai-unix.github.io/tags/%E6%9B%B2%E7%8E%87/</link><description>Recent content in 曲率 on s-ai-unix's Blog</description><generator>Hugo -- 0.161.1</generator><language>zh-cn</language><lastBuildDate>Thu, 29 Jan 2026 20:50:00 +0800</lastBuildDate><atom:link href="https://s-ai-unix.github.io/tags/%E6%9B%B2%E7%8E%87/index.xml" rel="self" type="application/rss+xml"/><item><title>从弯曲到一致性：微分几何中的芬切尔定理与舒尔定理</title><link>https://s-ai-unix.github.io/posts/2026-01-29-fenchel-schur-theorems/</link><pubDate>Thu, 29 Jan 2026 20:50:00 +0800</pubDate><guid>https://s-ai-unix.github.io/posts/2026-01-29-fenchel-schur-theorems/</guid><description>深入探讨微分几何中两个 fundamental 定理：芬切尔定理建立了闭曲线弯曲的下界，而舒尔定理则在黎曼几何中揭示了曲率的一致性。从数学史的脉络出发，详解这两条定理的证明过程与深刻应用。</description></item><item><title>微分几何中的联络：一场从直观到严格的数学之旅</title><link>https://s-ai-unix.github.io/posts/2026-01-26-connection-differential-geometry/</link><pubDate>Mon, 26 Jan 2026 19:30:00 +0800</pubDate><guid>https://s-ai-unix.github.io/posts/2026-01-26-connection-differential-geometry/</guid><description>本文系统而深入地介绍微分几何中联络的概念，从历史背景和直观动机出发，逐步建立严格的数学理论，涵盖协变导数、平行移动、Christoffel符号、曲率等核心内容。</description></item></channel></rss>