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Fernando
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14 votes
3 answers
2k views

2-category theory

13 votes
2 answers
863 views

is there any fibration $\mathbb{R}^n\to \mathbb{S}^n$?

11 votes
3 answers
1k views

A category with weak equivalences that is not a model category

6 votes
2 answers
975 views

Homotopy excision and homotopy pushout

5 votes
1 answer
185 views

Kan extension pseudonatural transformations

4 votes
4 answers
486 views

Which fields could be applied to neurosciences?

3 votes
1 answer
334 views

Top - Model structures

3 votes
0 answers
189 views

Homotopy limits of weak diagrams

2 votes
1 answer
410 views

n-limits and the Descent Category

1 vote
1 answer
341 views

Homotopy limit of a cosimplicial category

1 vote
0 answers
125 views

Characterization of pseudo split epimorphisms in Cat

1 vote
2 answers
292 views

Product in undercategory

1 vote
2 answers
213 views

Completion under weighted limits/colimits

1 vote
0 answers
58 views

Pseudopullback of dimension three