At a talk on symplectic Gromov Witten invariants. Technique uses Banach and Sobolev spaces. I last dealt with them before the speaker was born. #Maths
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Now he's stating the axioms which I know very well since 1993, and which I helped prove in 1996 in algebraic geometry. Symplectic geometrers are still struggling with them. I feel very lucky.
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If you let analysts do geometry without supervision you end up with an orgy of local coordinates computations.
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Replying to @BarbaraFantechi
An orgy of local coordinate computations is simply not geometry.
1:12 PM - 28 Nov 2018
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