spintwo.net jens boos | black hole physics and gauge theory



Here I keep pictures of various calculations on white/black/greenboards in order to save them from the occasional wipe-out disaster. Click on the pictures to obtain a full resolution picture.


Here I collect software snippets I programmed and used in various projects. Reduce is a free computer algebra system. It can be used for lengthy tensor algebra, and together with its package excalc it is also a powerful tool for calculations with differential forms in exterior calculus.