1.Whittaker function zeros and application
3.Toroidal poloidal decomposition
4.Finite element method example, elastostatics
5.Special relativity. Lorentz transformations
8.Rotations and Lorentz groups
9.Feynman amplitudes and lattice gauge theory
10.Lorentz invariance and spin-statistics
11.Mott scattering. Spin Hall effect