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10 Questions

Votes Activity Newest Views

21

31

votes

2

answers

4k

views

Is the fundamental group functor a left-adjoint?

at.algebraic-topology fundamental-group ct.category-theory

Oct 16 '12 at 20:09 Ronnie Brown 11.6k

8

21

votes

0

answers

1k

views

Is Feferman's unlimited category theory dead?

ct.category-theory lo.logic foundations

Aug 9 at 20:14 ziggurism 1,214

3

13

votes

1

answer

920

views

In what generality does Eilenberg-Watts hold?

ct.category-theory homological-algebra morita-equivalence yoneda-lemma morita-theory

Mar 8 '14 at 15:16 David White 20.7k

3

8

votes

2

answers

536

views

Correspondence between operads and monads requires tensor distribute over coproduct?

at.algebraic-topology ct.category-theory operads monads

May 15 '15 at 18:59 Dmitri Pavlov 24.4k

4

8

votes

3

answers

1k

views

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

at.algebraic-topology classifying-spaces

Jun 30 '13 at 9:54 Community♦ 1

1

7

votes

2

answers

264

views

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

gt.geometric-topology at.algebraic-topology spin-geometry reference-request

Apr 3 '13 at 4:05 Will Sawin 93.4k

11

7

votes

2

answers

1k

views

What is the free monoidal category generated by a monoid?

ct.category-theory monoidal-categories semigroups-and-monoids

Dec 5 '12 at 19:30 ziggurism 1,214

1

6

votes

0

answers

516

views

looping and delooping spaces and categories

at.algebraic-topology higher-category-theory loop-spaces ct.category-theory

Apr 24 '13 at 2:35 ziggurism 1,214

3

votes

1

answer

449

views

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

ct.category-theory abelian-categories abelian-groups

Nov 27 '12 at 22:04 Zhen Lin 11.5k

1

vote

1

answer

258

views

comparison between two monadic definitions for an operad

at.algebraic-topology ct.category-theory operads monads

Jan 29 '14 at 14:57 ziggurism 1,214

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