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ziggurism
  • Member for 12 years, 3 months
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35 votes
2 answers
5k views

Is the fundamental group functor a left-adjoint?

28 votes
0 answers
2k views

Is Feferman's unlimited category theory dead?

9 votes
2 answers
2k views

What is the free monoidal category generated by a monoid?

10 votes
3 answers
2k views

Why isn't $BG$ a group, for $G$ not abelian?

16 votes
1 answer
1k views

In what generality does Eilenberg-Watts hold?

8 votes
0 answers
771 views

looping and delooping spaces and categories

9 votes
2 answers
699 views

Correspondence between operads and monads requires tensor distribute over coproduct?

4 votes
1 answer
572 views

Why does tensor product in Ab(V) require colimits in V?

1 vote
1 answer
285 views

comparison between two monadic definitions for an operad

7 votes
2 answers
284 views

is there an anyon structure analogous to spin structure for rank 2 bundle?