These notes, coauthored with Corinne Manogue, formed the basis for formal and informal seminars at several institutions, including Mount Holyoke and Grinnell Colleges during 2002, and Oregon State University in 2004.
A PDF version of these notes is available here.
Section 5: Lorentz Transformations
Section 9: The Eigenvalue Problem
Section 11: Introduction to the Dirac Equation
Section 13: The Dirac Equation