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Here’s my second set of lecture notes for a 4 1 2 \frac{1}{2}-hour minicourse at the Summer School on Algebra at the Zografou campus of the National Technical University of Athens. Part 1 is here, and ...
These are some lecture notes for a 4 1 2 \frac{1}{2}-hour minicourse I’m teaching at the Summer School on Algebra at the Zografou campus of the National Technical University of Athens. To save time, I ...
Guest post by John Wiltshire-Gordon. My new paper arXiv:1508.04107 contains a definition that may be of interest to category theorists. Emily Riehl has graciously offered me this chance to explain. In ...
At the Topos Institute this summer, a group of folks started talking about thermodynamics and category theory. It probably started because Spencer Breiner and my former student Joe Moeller, both ...
In week241 of This Week’s Finds, you can follow me on my tour of the Laser Interferometry Gravitational-Wave Observatory in Louisiana:. Also hear some tales of the dodecahedron… from the pyritohedron ...
David wrote: You’re saying this bar construction works for any adjunction? Yes, in that any adjunction gives a simplicial object. It works best when the adjunction is monadic: in this case the ...
Whitehead tower in the west and, dually, Postnikov tower in Moscow, were discovered about in the same period. I think that I read in the volume Golden Year of Moscow Mathematics (Smilka Zdravkovska ed ...
Daniel de Franca asked about the relation, if any, between our discussion of the Green-Schwarz mechanism in terms of L ∞ L_\infty-algebra connections and the use of 3-Lie algebras that is currently so ...
Quantization and Cohomology (Week 11) Posted by John Baez In this week’s lecture on Quantization and Cohomology, we’ll start digging deeper into what quantization is really about: . Week 11 (Jan. 23) ...
Hisham Sati, Jim Stasheff and myself are working on writing up some ideas on Lie ∞ \infty-algebra cohomology and its application to String- and Chern-Simons n n-Transport, further exploring the second ...
The math-blogosphere is abuzz with interest in the new Math Overflow, a mathematics questions and answers site.Already we at the Café have been helped with the answer to a query on the Fourier ...
In the pi calculus, there are mailboxes, each with a name like x.You should think of the name x like the key to open the mailbox–if you don’t have the key, you can’t deposit or withdraw messages.
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