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# Questions

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### Is there an algebraic curve over Q which is not modular?

may 11 at 23:51 François Brunault 7,38911335

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### Category with a “metric” for arrow composition

may 6 at 10:58 Steven Landsburg 8,63412747

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### Where do the product expansions of modular forms come from?

may 4 at 1:56 S. Carnahan 25.6k4190

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### Elliptic curve over a scheme is a group scheme?

apr 29 at 17:07 anon 5112

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### A divergent series related to the number of divisors of of p-1

apr 28 at 12:08 Nilotpal Sinha 1,674621

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### Is the primitive element theorem a cohomological statement?

mar 21 at 3:01 Steven Landsburg 8,63412747

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### Which formulae of Euler is Fröhlich referring to?

may 8 12 at 16:06 Faisal 6,0911838

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### Patching together homeomorphisms: how badly can it fail?

nov 9 11 at 11:56 Ramiro de la Vega 3,640715

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### Multiplying functions on the unit square as generalized matrices

sep 7 11 at 7:18 a-fortiori 2,786511

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