- Relativistic quantum mechanics
- Mathematical problems of the perturbative expansion
- Dyson’s perturbative expansion
- Dyson argument against convergence
- Non-perturbative foundations of quantum field theory
- General non-perturbative results and examples
- Euclidean quantum field theory
- Non-perturbative S-matrix
- Quantization of gauge field theories
- Chiral symmetry breaking and vacuum structure in QCD