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Andrea
  • Member for 10 years, 11 months
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17 votes
1 answer
856 views

An exercise with Zariski topology

15 votes
2 answers
2k views

Good books/expository papers in moduli theory

12 votes
2 answers
2k views

Derived functors of torsion functor

8 votes
1 answer
2k views

Prime ideals of the ring of rational functions

6 votes
3 answers
313 views

When is a local algebra reduced?

5 votes
2 answers
240 views

Finite presentation of algebra of invariants

5 votes
2 answers
627 views

Geometrical approaches to Class group of Dedekind Rings

4 votes
1 answer
1k views

When are two diagonal matrices congruent?

4 votes
1 answer
302 views

Subrings of formal series rings

3 votes
1 answer
236 views

Embedding a manifold in the disk

3 votes
1 answer
353 views

Compact operators between Hilbert spaces

3 votes
1 answer
93 views

Limits of subrings and surjectivity

2 votes
1 answer
584 views

Compute Hilbert function of a monomial ideal

2 votes
1 answer
222 views

A property of different in Dedekind domains

2 votes
1 answer
574 views

Finitely presented modules

0 votes
1 answer
575 views

A consequence of Runge's theorem

0 votes
1 answer
140 views

An easy question with integer numbers [duplicate]