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lieven lebruyn's user avatar
lieven lebruyn's user avatar
lieven lebruyn's user avatar
lieven lebruyn
  • Member for 14 years, 5 months
  • Last seen more than a week ago
55 votes

What is the insight of Quillen's proof that all projective modules over a polynomial ring are free?

52 votes
Accepted

What is the knot associated to a prime?

37 votes

What is the algebraic closure of the field with one element?

37 votes

Non-commutative algebraic geometry

28 votes
Accepted

The work of E. Artin and F. K. Schmidt on (what are now called) the Weil conjectures.

26 votes
Accepted

Applications of noncommutative geometry

16 votes

Mazur's unpublished manuscript on primes and knots?

15 votes

Rational numbers as an extension of the field with one element?

15 votes

construct scheme from quivers?

15 votes
Accepted

Representations of the three string braid group

13 votes
Accepted

when are algebras quiver algebras ?

12 votes
Accepted

Rationality of GIT quotients

12 votes

Dimension of subalgebras of a matrix algebra

11 votes
Accepted

Non-smooth algebra with smooth representation variety

10 votes
Accepted

Is it possible to classify the indecomposable representations of the wild quiver with one vertex and two arrows using infinite sets of parameters?

8 votes
Accepted

Point modules of quantum projective space $\mathbb{P}^n$

8 votes
Accepted

Existence of non-commutative desingularizations

7 votes

Acyclic quivers differing only in arrow directions: functorial isomorphism of representation categories?

7 votes
Accepted

What is a Serre-smooth algebra?

6 votes
Accepted

Morita equivalence and moduli problems

6 votes
Accepted

How to find examples of non-trival kernel of maps between Brauer groups Br(R) -> Br(K)

3 votes
Accepted

Weyl algebra as an Azumaya algebra over its centre