1 Nonrelativistic Quantum Mechanics.- A. Review of the Formalism.- Space-Time Symmetries.- The Spinor Representation.- B. Electromagnetic Fields and Spin.- Inclusion of the Spin.- Uniform Magnetic Field.- C. The Two-Body Problem.- D. A Preliminary Next Step.- Problems.- References.- 2 The Dirac Equation.- A. Spacetime Structure and Lorentz Transformations.- The Homogeneous Lorentz Group.- Spinors Revisited.- B. Dirac's Way.- Properties of the Dirac Matrices.- Relativistic Covariance.- Free-Particle... Mehr