4 links
Linear Methods of Applied Mathematics
mathphysics.com
This is a WWW textbook written by Evans M. Harrell II and James V. Herod, both of Georgia Tech. It is suitable for a first course on partial differential equations, Fourier series…
Mathematical Methods in Physics
math.umn.edu
Covers Conformal Field Theory, Modular Functor, Topological Quantum Field …
Preparation for Gauge Theory
arxiv.org
Class lecture notes at a graduate level on the mathematical background needed to understand classical gauge theory.
Spinors in Physics and Geometry
hep.uiuc.edu
A fourth year math/physics course at UIUC with online lecture notes.