154

Questions
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What does the Tannakian formalism reconstruct when fed the category of chain complexes?

apr 3 12 at 2:55 Ben Wieland 3,127●4●21

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Which is the correct ring of functions for a topological space?

oct 24 at 6:59 jbc 1,353●1●2●4

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Why is Lie’s Third Theorem difficult?

aug 12 11 at 4:33 amine 431●2●9

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How are these algebraic and geometric notions of homotopy of maps between manifolds related?

aug 19 11 at 22:45 Peter Teichner 1,226●14●8

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How is tropicalization like taking the classical limit?

oct 16 09 at 19:58 Thomas Sauvaget 1,427●5●23

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Is there a “categorical” description of Grothendieck’s algebra of differential operators?

apr 1 10 at 11:33 Bugs Bunny 4,942●3●18

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What is the Zariski closure of the space of semisimple Lie algebras?

dec 25 09 at 17:59 Noah Snyder 11.6k●1●27●72

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To what extent can I think of a Lagrangian fibration in a symplectic manifold as T*N?

feb 4 12 at 7:57 Nicola Ciccoli 1,128●4●10

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What is the precise relationship between groupoid language and noncommutative algebra language?

jul 13 10 at 5:12 Theo Johnson-Freyd 22.9k●2●28●114

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Functoriality of the cotangent bundle

jun 1 at 12:26 Peter Michor 6,348●1●15●20

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