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Alex Saad's user avatar
Alex Saad's user avatar
Alex Saad's user avatar
Alex Saad
  • Member for 9 years, 9 months
  • Last seen more than 4 years ago
  • Oxford, United Kingdom
14 votes
1 answer
2k views

Symmetric tensor decomposition in higher tensor powers

8 votes
1 answer
733 views

The canonical height of a point on an elliptic curve

1 vote
2 answers
182 views

Why does the ideal $(f_1^N,\cdots,f_n^N)$ contain a power of the ideal $(f_1,\cdots,f_n)$?

7 votes
2 answers
759 views

Solving exercise 1.10 in Silverman's AEC

4 votes
2 answers
276 views

Epimorphisms and faithful functors in a rigid abelian tensor category

3 votes
1 answer
1k views

How do I compute the normalisation of $A=k[X,Y]/(Y^3 - X^5)$?

3 votes
0 answers
108 views

Is there a simple formula for this polynomial sum?

1 vote
0 answers
168 views

For which CM points $\tau$ is $\gamma(\tau)$ also a CM point?

13 votes
1 answer
1k views

The étale fundamental group as a functor

1 vote
1 answer
189 views

Algebraic singular moduli

3 votes
1 answer
253 views

Questions about the proof of Chen's $\pi_1$-de Rham theorem in Hain's Hodge Structure on $\pi_1$ paper

4 votes
1 answer
297 views

Motivation for orbifold base points

3 votes
1 answer
223 views

How to recover the coefficients of a formal noncommutative power series from a twist?

15 votes
1 answer
2k views

Details in applying the Barr-Beck monadicity theorem to Tannakian reconstruction

12 votes
1 answer
1k views

Is there a "logical algebraic geometry" based on provability rather than truth?

3 votes
0 answers
83 views

Categorical origin of polygonal equations for Drinfeld associators

3 votes
1 answer
206 views

Hain's commutator formula for iterated integrals

3 votes
1 answer
2k views

References for the representation theory of some algebraic groups

2 votes
1 answer
220 views

What's the connection between these two notions of a connection?

1 vote
0 answers
114 views

Algebraic complexity of complex residues and monodromy representations

5 votes
1 answer
385 views

Why do these open subgroups of the étale fundamental group contain the kernel of an induced homomorphism?

5 votes
0 answers
339 views

Two questions on homotopy sequence for étale fundamental groups

2 votes
1 answer
243 views

Why are representations of a finite constant group scheme determined by rational points?

4 votes
0 answers
300 views

How to recover a $K$-algebra from endomorphism algebra of forgetful functor?

4 votes
2 answers
299 views

The rigid additive tensor category freely generated by an object

3 votes
1 answer
212 views

Why does this exact sequence of sheaves imply the maps are $G$-equivariant?

7 votes
1 answer
248 views

Why do we need the infinite field hypothesis in this cohomology calculation?

9 votes
1 answer
1k views

Can a separable isogeny of elliptic curves have an inseparable dual?

3 votes
0 answers
889 views

Kähler differentials in an inseparable field extension

10 votes
2 answers
818 views

Why are invertible objects reflexive in a tensor category?