Perturbative QCD: Fundamental Theorems

Infrared safety in e⁺e^- annihilation

Total cross section

Other infrared-safe quantities in e⁺e^- annihilation

Factorization theorems in deeply inelastic scattering

Factorization for structure functions

Factorization schemes

Evolution

Other factorization theorems

Drell-Yan

Single-particle inclusive cross sections

Operator definitions of parton distribution and fragmentation functions

Quark distribution functions

Gluon distribution functions

Fragmentation functions