Array ( [0] => Array ( [title] => L25A [link] => https://www.youtube.com/embed/a9J790cxmdE ) [1] => Array ( [title] => L25B [link] => https://www.youtube.com/embed/gyr5zBK7xHI ) [2] => Array ( [title] => L25C [link] => https://www.youtube.com/embed/jR46p4WAtU8 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第25講 Gauss-Bonnet Theorem (cont.)

Title

第25講 Gauss-Bonnet Theorem (cont.)

第1節

L25A

第2節

L25B

第3節

L25C

Syllabus

章節大綱

L25A
   1. Theorem: Gauss-Bonnet Theorem for Orientable Compact Surface
   2. Example: Sphere with Radius r
   3. Example: Convex Surface in R^3
   4. Example: Polar Cap
 
L25B
   1. Example: Polar Cap (cont.)
   2. Euler Characteristic Number and Genus
   3. Theorem: Diffeomorphic Surfaces Have the Same Euler Characteristic
    Number and Two Compact Oriented Surfaces with the Same Euler
    Characteristic Number Are Diffeomorphic
 
L25C
   1. Theorem: A compact Oriented Surface with Positive Gauss Curvature
             Is Diffeomorphic to a Standard Sphere

   2. Four Color Map Theorem