Mathematics
Espen Nielsen's user avatar
Espen Nielsen's user avatar
Espen Nielsen's user avatar
Espen Nielsen
  • Member for 10 years, 3 months
  • Last seen more than a week ago
Profile Activity
Stats
3,823
reputation
171k
reached
88
answers
11
questions
Communities
View all
About

I am a Ph.D. student at Copenhagen University, in the field of algebraic topology.

I am interested in (higher) (topological) Hochschild homology and their applications to string topology and algebraic geometry.

Badges
View all badges
This user doesn’t have any gold badges yet.
15
silver badges
30
bronze badges
Top tags
View all tags
43
Score
6
Posts
6
Posts %
33
Score
11
Posts
11
Posts %
23
Score
9
Posts
9
Posts %
18
Score
11
Posts
11
Posts %
14
Score
12
Posts
12
Posts %
9
Score
7
Posts
7
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
question
21
A theorem due to Gelfand and Kolmogorov
Nov 1, 2012
question
15
Is every contractible space a cone?
Jan 16, 2013
answer
15
Alternative to Axler's "Linear Algebra Done Right"
Nov 22, 2012
question
13
Example of a pair of non-cobordant manifolds
Jan 22, 2013
answer
13
If $m$ and $n$ are distinct positive integers, then $m\mathbb{Z}$ is not ring-isomorphic to $n\mathbb{Z}$
Jun 30, 2013
answer
12
What are good references to self study persistent homology?
Oct 15, 2015
answer
11
Finding a homeomorphism $\mathbb{R} \times S^1 \to \mathbb{R}^2 \setminus \{(0,0)\}$
Jan 3, 2013
answer
11
What's a proof that the angles of a triangle add up to 180°?
Jan 3, 2013
answer
10
How to construct geometrically $\sqrt[k]{n}$ for $k \in \mathbb{Z}$ and $k>2$
Jan 13, 2015
question
9
Axiomatizing oriented cobordism
Jun 4, 2013
Top network posts
View all network posts
21
Counting categories with at most $n$ morphisms
15
What does（棒） as net slang mean?
15
Are there analogies between $\Bbb F_q[x_1,x_2]$ and a suitable object related to $\Bbb Z$?
14
Old way of counting people?
12
On the coherence theorem for bicategories

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.