Peter May and I are about to run a workshop on n-categories at the Institute for Mathematics and its Applications:(adsbygoogle = window.adsbygoogle || []).push({});

http://www.ima.umn.edu/categories/ [Broken]

We'll mainly be trying to compare different definitions of n-categories, but there will be an afternoon about applications of n-categories to mathematical physics, especially topological quantum field theory. Since most of the audience won't be experts on physics, I'm giving an introductory talk which may be of interest to some people here too:

http://math.ucr.edu/home/baez/n_categories/index.html#spacetime_and_process

This includes some of the math I deliberately left out of my paper "Quantum Quandaries: A Category-Theoretic Perspective":

http://math.ucr.edu/home/baez/quantum/

Check it out! You can also see transparencies of two of my n-category talks.

Best,

John Baez

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# Space and state, spacetime and process

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