Jan Steinebrunner's user avatar
Jan Steinebrunner's user avatar
Jan Steinebrunner's user avatar
Jan Steinebrunner
  • Member for 7 years, 9 months
  • Last seen more than a month ago
16 votes
2 answers
537 views

How can I functorially dualise in a symmetric monoidal $(\infty,1)$-category with duals?

14 votes
2 answers
451 views

Are free $E_\infty$-algebras in spaces closed under pullbacks? (as a full subcategory of all $E_\infty$-algebras in spaces)

10 votes
3 answers
1k views

Can filtered colimits be computed in the homotopy category?

8 votes
0 answers
299 views

How to define the direct sum of TQFTs $(\infty,1)$-categorically?

7 votes
0 answers
127 views

Endofunctors of the surface category

7 votes
1 answer
721 views

Solidification of free abelian group on compact Hausdorff space

6 votes
0 answers
187 views

Base-change for simplicial spaces

6 votes
2 answers
430 views

Does the Day convolution induce the structure of a bimonoidal category on $Fun(C,D)$?

4 votes
0 answers
188 views

Can the cobordism hypothesis be formulated as a statement about adjoint functors?

4 votes
2 answers
857 views

A CW is of countable type, iff all its homotopy groups are countable? (References?)

3 votes
0 answers
176 views

Augmented algebras over $\infty$-operads via the envelope

2 votes
1 answer
907 views

Infinite Grassmannian does not have the homotopy type of a finite-dimensional complex

2 votes
2 answers
963 views

Is there always a universal bundle over a classifying space?

1 vote
1 answer
839 views

Every topological manifold is a ENR? (Reference)