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Questions
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23
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788
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Euler characteristic and universal cover

oct 14 at 20:58 Dmitri 16.5k●1●36●77

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9
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1
answer
336
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sub-tori of a torus, generated by 1-dimensional subgroup

may 12 10 at 18:11 Torsten Ekedahl 17.9k●1●42●68

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241
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Spaces of matrices with same eigenvalue/Great circles in O(n)-orbits

mar 16 12 at 15:52 Marco Radeschi 762●5●9

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2
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185
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Submersions from compact flat manifold

jan 31 at 22:51 Marco Radeschi 762●5●9

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250
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(Non)-exoticness of a diffeomorphism of a sphere

oct 29 at 22:57 Ryan Budney 21.6k●1●40●101

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0
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608
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Surjectivity of the normal exponential map

jan 25 10 at 4:11 Marco Radeschi 762●5●9

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2
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379
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Can projective hypersurfaces contain linear spaces? How big?

feb 12 10 at 14:53 Charles Siegel 10.8k●2●31●81

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answer
160
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Smoothness and fullness of determinantal varieties

aug 24 10 at 17:33 Sasha 9,923●1●7●17

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3
answers
347
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Multiplicity of eigenvalues in 2-dim families of symmetric matrices

jul 1 11 at 6:22 Denis Serre 18.7k●1●31●93

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1
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399
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Smoothness of vector fields with smooth flow

nov 8 11 at 16:25 Marco Radeschi 762●5●9

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