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Topological quantum field theory.

17 votes
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Interpreting the CS/WZW correspondence

Actually I think the idea of the holographic principle is that, as in a holograph, all the information in the 'bulk' is already present at the 'boundary'. So, it claims that any calculation involving …
John Baez's user avatar
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16 votes

Why is a Topological Field Theory equivalent to a Frobenius algebra?

Arun Debray's answer is good, with one addendum: 2d TQFT is the same thing as a commutative Frobenius algebra. But to truly understand what's going on, one also needs some pictures. A commutative Fr …
John Baez's user avatar
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