Timeline for What are some examples of ingenious, unexpected constructions?
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| Mar 15, 2012 at 14:57 | comment | added | Jim Conant | @Daniel: My understanding was that it was a surprise, not only because of its existence but also because of the novelty of the construction. That said, I think the KZ-connection construction was known to several people, and that Kontsevich's big insight was how to correct for Morse cancellations. Dror would know a lot better than I would; perhaps you can ask him. | |
| Mar 15, 2012 at 6:05 | comment | added | Daniel Moskovich | Was it generally believed that a universal finite type invariant for tangles should not exist? After all, Kohno's results were around (universal finite type invariant for braids). | |
| Mar 14, 2012 at 17:21 | history | answered | Jim Conant | CC BY-SA 3.0 |