STARLIGHT
THEORY

Smooth Manifolds #10

De Rham Cohomology and Global Analysis

De Rham Cohomology: Connecting Form and Structure

De Rham cohomology is a sophisticated tool that reveals the deep connection between the differential structure of a manifold and its topology. It provides a bridge between local and global properties of manifolds.

The Power of Cohomology

De Rham cohomology groups measure:

  • The presence of “holes” in the manifold
  • Obstructions to solving certain differential equations
  • Global symmetries and conservation laws

Main Topics:

  1. The de Rham complex
  2. Closed and exact forms
  3. Computing cohomology groups
  4. The Mayer-Vietoris sequence
  5. Poincaré duality

This theory unifies many classical results:

  • Green’s theorem
  • Stokes’ theorem
  • The fundamental theorem of calculus

Join us in exploring this beautiful connection between analysis and topology!