25

Questions

1
3
votes
0
answers
95
views

Is there a local projective model structure on simplicial sheaves? What are its fibrant objects?

apr 28 at 13:43 Dmitri Pavlov 7,06811344

1
0
votes
1
answer
110
views

Can elements of Weil algebras be detected by maps into truncated symmetric algebras?

may 11 at 9:22 MathOverflow 123

2
3
votes
1
answer
337
views

Which E_∞-spaces are homotopy colimits of k-truncated E_∞-spaces?

mar 20 at 18:33 Dmitri Pavlov 7,06811344

5
5
votes
1
answer
396
views

Are Thom spectra MU, MSO and K-theory spectra KU, KO modules over some truncations of the sphere spectrum?

mar 20 at 18:35 Dmitri Pavlov 7,06811344

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4
votes
0
answers
193
views

Is the pushout of smooth varieties along a smooth closed subvariety again a variety?

dec 11 at 16:25 Dmitri Pavlov 7,06811344

5
9
votes
1
answer
472
views

Is there a mathematical explanation for the Aharonov-Casher effect?

jul 17 at 4:43 Chris Gerig 5,52611240

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5
votes
2
answers
214
views

Necessary conditions for cofibrancy in global projective model structure on simplicial presheaves

apr 11 at 6:30 Richard Garner 561

2
10
votes
1
answer
447
views

What are the smooth manifolds in the topos of sheaves on a smooth manifold?

dec 9 at 19:16 Peter Michor 5,5221017

6
13
votes
0
answers
501
views

Is the category of smooth manifolds equivalent to the opposite category of the category of commutative monoids of some additive symmetric monoidal category?

sep 30 11 at 16:43 Dmitri Pavlov 7,06811344

6
9
votes
1
answer
535
views

Are bundle gerbes bundles of algebras?

aug 13 11 at 14:21 Konrad Waldorf 1,90511315

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