November 2023 Archives | The n-Category Café

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Random Past Entries

TeXnical Issues

September 2, 2006
Sage advice on viewing this blog and posting comments thereon.

Twisted Differential Nonabelian Cohomology

Oct 30, 2008
Work on theory and applications of twisted nonabelian differential cohomology.

Measuring Diversity

Oct 23, 2011
A way of quantifying diversity, especially biological diversity, that takes similarity between species into account.

Why Category Theory Matters

Jun 3, 2019
In which I find that I’m leading a cabal of radical category theorists.

Integral Octonions (Part 8)

Nov 15, 2014
With a suitable Lorentzian metric, the lattice of self-adjoint 3 x 3 octonionic matrices with integral octonions as entries becomes isometric to a 27-dimensional lattice that may play a role in bosonic string theory.

Accessible Even to a Philosopher