Twistors- What are they? (Popularity: ): A set of notes introducing spinors and twistors. Mathematical Methods I (Popularity: ): This site contains the complete lecture notes and homework sets for PHYCS498MMA, a course of mathematical methods for physics given to entering graduate students, and senior undergraduates, at the University ... Hyperreal World (Popularity: ): Nonstandard analysis and its applications to quantum physics, by H.Yamashita. Mixed English/Japanese. Discrete Self-trapping Equation (Popularity: ): A bibliography in BibTeX format for those interested in discrete nonlinear Schrödinger type equations. This Week's Finds in Mathematical Physics (Popularity: ): This is a column written about modern topics in mathematical physics. Holomorphic Methods in Mathematical Physics (Popularity: ): This set of lecture notes by Brian C. Hall gives an introduction to holomorphic function spaces as used in mathematical physics. The emphasis is on the Segal-Bargmann space and the ... Lectures on Orientifolds and Duality (Popularity: ): Notes by Atish Dabholkar on orientifolds emphasizing applications to duality. Homological Methods in Mathematical Physics (Popularity: ): These lecture notes by Joseph Krasil'shchik and Alexander Verbovetsky are a systematic and self-contained exposition of the cohomological theories naturally related to partial differential equations. Recent Developments in Skyrme Models (Popularity: ): An introduction by T. Gisiger and M.B. Paranjape to recent, more mathematical developments in the Skyrme model. The aim is to render these advances accessible to mainstream nuclear and particle ... An Introduction to Noncommutative Geometry (Popularity: ): A set of lecture notes by Joseph C. Varilly on noncommutative geometry and its applications in physics.