Joakim Arnlind's user avatar
Joakim Arnlind's user avatar
Joakim Arnlind's user avatar
Joakim Arnlind
  • Member for 12 years, 10 months
  • Last seen more than a month ago
9 votes
4 answers
811 views

Which concept of dimension of a ring of functions on a manifold, gives the dimension of the manifold?

7 votes
0 answers
410 views

How to prove that a projective module is not free?

6 votes
1 answer
679 views

Equivalence of idempotents and projective modules over nonunital rings

6 votes
1 answer
224 views

Noncommutative Poincaré inequalities

6 votes
1 answer
736 views

Example of an infinite dimensional reflexive Banach algebra

6 votes
2 answers
526 views

Positive matrices matrices over commutative rings

6 votes
3 answers
769 views

Trace of the identity map in a projective module

5 votes
0 answers
153 views

When is an inner derivation a Fredholm operator?

4 votes
1 answer
198 views

Does noncommutative Lp-convergence respect orderings?

4 votes
2 answers
588 views

Lower bounds for norms of commutators

3 votes
2 answers
233 views

Skew fraction fields of *-algebras

3 votes
0 answers
61 views

Set of equivalence classes of a Lie algebra under the action of the automorphism group

2 votes
1 answer
874 views

When are two projective modules of equal rank isomorphic?

2 votes
3 answers
3k views

Extension of pointwise convergence of a sequence of uniformly continuous functions that converges on a dense set

2 votes
1 answer
399 views

Singularities of complete intersections of affine varieties with hypersurfaces

1 vote
0 answers
265 views

Automorphisms of rational functions of two variables

1 vote
0 answers
277 views

Clarkson's inequalities for Banach space valued functions