An introduction to teisi, with implications for braidings
Mathematical structures are not always what they seem. This talk
features several examples of this phenomenon, such as abelian groups,
centers, braidings, and Yang-Baxter. All these examples arise from
the speaker's new approach to higher-dimensional category theory,
based on teisi (which is Welsh for stacks).
The slides of this talk are available as a
ps-file.
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