Jeremy Brazas's user avatar
Jeremy Brazas's user avatar
Jeremy Brazas's user avatar
Jeremy Brazas
  • Member for 13 years, 11 months
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16 votes
3 answers
3k views

What is π_1(BG) for an arbitrary topological group $G$?

15 votes
3 answers
1k views

The existence of non-trivial homomorphisms $\prod_{n=1}^{\infty}\mathbb{Z}/\bigoplus_{n=1}^{\infty}\mathbb{Z}\to\mathbb{Z}/p\mathbb{Z}$

14 votes
1 answer
704 views

Paths in path component spaces

13 votes
1 answer
763 views

Is there a compact, connected, totally path-disconnected topological group?

13 votes
3 answers
2k views

Making CW-complexes metrizable

10 votes
0 answers
399 views

The group analogue of the James construction

10 votes
2 answers
987 views

Why free topological groups on Tychonoff spaces?

9 votes
0 answers
450 views

Quotients of topological groupoids

9 votes
1 answer
621 views

Must an inverse limit of simply connected groups be simply connected?

8 votes
2 answers
493 views

Refining open covers in locally path connected spaces

7 votes
2 answers
631 views

The integers as a sequential but non-first countable topological group

7 votes
2 answers
263 views

The union of all coreflective Cartesian closed subcategories of $\mathbf{Top}$

7 votes
1 answer
172 views

Paths through convergent sequences in $\Delta$-generated spaces

7 votes
1 answer
218 views

Factoring a projection of surface groups through a free group

6 votes
2 answers
326 views

Intersection of all open subgroups vs. the intersection of all open normal subgroups

6 votes
0 answers
145 views

Metric spaces containing a topological disc

6 votes
1 answer
295 views

How complicated can the path component of a compact metric space be?

6 votes
1 answer
274 views

Nearly slender abelian groups

6 votes
2 answers
500 views

Hausdorff group topologies on finitely generated groups

5 votes
2 answers
607 views

How do you know when a reflective subcategory of Top is quotient-reflective?

5 votes
1 answer
328 views

Example of a quasitopological group with discontinuous power map

4 votes
1 answer
196 views

An algebraically generated set of linear orders

4 votes
0 answers
38 views

"Monomorphicness" of a natural morphism induced by a monoidal functor

3 votes
1 answer
566 views

Powers of quotient maps