Calculations using angular moment.

Evaluation of integral for specific heat.

Calculations (on general hamiltonian?).

Calculations.

Calculations on the theory of relativity.

Miscellaneous calculations.

Calculations on different topics (spin 3/2, Dirac theory, matrix, ...).

Calculations on different topics (spin 3/2, Dirac theory, matrix, ...).

Notes and calculations on geometrical and spatial problems.