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Miscellaneous Writings
Canonical transformations and their quantum counterparts (Legendre and Fourier)
Spinors, the Dirac equation, and Checkerboard models
Dirac operators
Hidden Symmetries and Killing-Yano tensors
Generalized Electromagnetism
Gauge invariant observables (problem of time)
Bohm, Nelson, and QFT
Time in (quantum) mechanics
(reparameterization, Hamilton constraints, etc.)
Black Hole Entropy
What Bogdanov & Bogdanov were really saying
The generator of time evolution in classical electromagnetism
Lie derivative of spinors (along Killing vectors)
Exterior calculus, the Weitzenboeck formula, and gravity
Visualization of the photon state of the string