Martin Orr's user avatar
Martin Orr's user avatar
Martin Orr's user avatar
Martin Orr
  • Member for 14 years, 5 months
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21 votes
1 answer
3k views

Crystalline cohomology of abelian varieties

17 votes
2 answers
5k views

Exactness of filtered colimits

15 votes
2 answers
2k views

Does the p-adic Tate module of an elliptic curve with ordinary reduction decompose?

15 votes
1 answer
1k views

Quadratic forms and $p$-adic integers

14 votes
4 answers
3k views

Is the normalizer of a reductive subgroup reductive?

8 votes
1 answer
2k views

Cohomology of a constant etale sheaf

8 votes
2 answers
2k views

Points of a variety defined by Galois descent

5 votes
2 answers
1k views

Conjugate cocharacters in a maximal torus

4 votes
0 answers
316 views

Good reduction of isogenous abelian varieties over finitely generated fields

4 votes
1 answer
359 views

Prime ideals in maximal orders (1- and 2-sided)

4 votes
0 answers
167 views

Bound for the height of equations defining the singular locus of a variety

4 votes
1 answer
1k views

Tate twist and comparison between Betti and de Rham cohomology

2 votes
0 answers
115 views

Endomorphisms of the multiplicative group over a non-reduced complex analytic space

2 votes
2 answers
603 views

Is the moduli space of ppAVs smooth?

2 votes
3 answers
1k views

Upper bound for lowest common multiple of integers with (almost) fixed sum

1 vote
0 answers
200 views

Bound for field of definition (vs field of moduli) of an abelian variety