Serre Spectral Sequence

Filtering the cohomology of a fibration F → E → B page by page

Fibration

Page r =

E₂

E_r^{p,q} grid

Each cell (p,q) holds E_r^{p,q}. Differential d_r: E_r^{p,q} → E_r^{p+r,q-r+1}. The sequence converges: E_∞^{p,q} ⇒ H^{p+q}(E).