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js21
  • Member for 10 years, 7 months
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13 votes
1 answer
514 views

Square of a continuous map

13 votes
1 answer
590 views

If each strict subgroup of G is free, must G be free or cyclic of prime order ?

10 votes
2 answers
1k views

Prime numbers in arithmetic progressions : uniformity with respect to the modulus

9 votes
5 answers
4k views

Applications of Liouville's theorem

8 votes
1 answer
488 views

When does the doubling map preserve measure ?

7 votes
0 answers
402 views

Closed form evaluation of the sum of the Legendre symbol over an interval ?

7 votes
2 answers
411 views

Direct proof of "K is projective iff C(K) has the Hahn-Banach property" ?

7 votes
3 answers
399 views

Covering a (hyper)cube with lines

6 votes
1 answer
662 views

Characteristic polynomial of a generic n*n matric

5 votes
1 answer
197 views

A question on minimal idempotent ultrafilter on N^2

5 votes
0 answers
294 views

Do tuples of pairwise commuting matrices form a variety?

5 votes
0 answers
231 views

A question on symmetric functions

5 votes
0 answers
196 views

Where can I find Andre's "Cinq exposés sur la désingularisation"?

4 votes
0 answers
114 views

A right adjoint to the truncated Witt functor?

4 votes
1 answer
558 views

A reference for this possibly well-known fact concerning the Kakeya conjecture?

4 votes
0 answers
156 views

Does this construction yield an injective hull ?

4 votes
1 answer
361 views

Ring structrures on R^n

4 votes
2 answers
611 views

Emptyness of a projective variety

3 votes
1 answer
248 views

Does the "measure-preserving property" commute with ultralimits ?

3 votes
1 answer
128 views

A recurrent sequence related to the Brouwer fixed-point theorem

3 votes
0 answers
411 views

p-adic etale cohomology

2 votes
0 answers
90 views

Is the positive part of an algebraic bilateral p-adic convergent power series algebraic?

2 votes
0 answers
132 views

When does effective descent of modules hold?

2 votes
1 answer
418 views

Classification of pairs of commuting endomorphisms

1 vote
0 answers
137 views

Is semistability of smooth Weil sheaf preserved under tensor product?