Geometric quantization is often presented as a systematic recipe for starting with a classical mechanics problem and "quantizing" it. But in fact you have to add a lot of extra input before you can turn the crank! I explain here:https://tinyurl.com/baez-qg2
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I'll talk about this stuff in Montpellier on Feb. 6th at Foundations of Geometric Structures of Information - a conference honoring the scientific legacy of Cartan, Koszul and Souriau. Souriau helped invent geometric quantization! https://fgsi2019.sciencesconf.org/ pic.twitter.com/8rTIcMiReP
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Replying to @johncarlosbaez
While you're in Montpellier, don't omit to visit this breathtaking masterpiece, http://bit.ly/2TdRdKH which reposes in the permanent collection of the superb Musée Fabre: https://en.wikipedia.org/wiki/Mus%C3%A9e_Fabre …
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Replying to @MathPrinceps
Thanks! That first link gives me a warning: "The link you requested has been identified by bitly as being potentially problematic." etc.
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Replying to @johncarlosbaez
I see, I see. How unfortunate. Well, I'll just attach the image, then:pic.twitter.com/N6xxczdUON
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Replying to @MathPrinceps
Thanks! I'll see if I can check it out. To me one big attraction of Montpellier is that it was Grothendieck's base of operations after he didn't get that job in Paris (and before he ran away and hid out). But I don't know if there's any sign left of his presence there.
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Replying to @johncarlosbaez @MathPrinceps
Ruelle wrote about Grothendieck in this collection.Great read. I winced reading about this recent congressional meeting where they were asked pure math to be funded.I thought they should follow G & ask for all Pure Math back like he did.Starting with 0.http://www.math.harvard.edu/~knill/teaching/mathe320_2014/blog/butterfly.pdf …
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This is for twitterati who may not know or not find time to read through the book. I am sure you would know about it already.pic.twitter.com/shffda5Jrq
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I've always admired Ruelle for his unflinching clarity on this point, with which I'm in complete agreement. Indeed, the treatment meted out to Grothendieck by the mathematical community seems to me qualitatively similar to that meted out to Galois, some 140 years earlier.
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