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Questions

2
12
1
391
views

How can one “see” the Hopf fibration in the space of lattices in the plane?

oct 17 10 at 22:46 Bruce Bartlett 38917

2
7
2
313
views

What do the numbers G_4 and G_6 of a lattice actually measure?

feb 17 10 at 2:38 Steve Huntsman 8,13912256

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4
3
183
views

Is the Fell-Doran problem trivial in a topological setting?

nov 16 09 at 20:05 Andrew Stacey 16k140110

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4
3
594
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How can one express the Dedekind eta function as a sum over the lattice?

oct 18 10 at 5:01 Richard Borcherds 14.1k25482

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1
184
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Does the following “symmetric” 2nd cohomology group of a finite group with coefficients in $Z_2$ always vanish?

oct 13 at 8:32 Bruce Bartlett 38917

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