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15
Math.TechQA.Club
2026-04-15 16:08:27
536
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Simple examples of A-infinity categories/algebras
Published on
15 Apr 2026 - 16:08
#combinatorics
#algebraic-topology
#soft-question
#homological-algebra
#higher-category-theory
58
Views
Why is the class of isomorphisms perfect? Lurie, p.824
Published on
12 Apr 2026 - 16:18
#category-theory
#set-theory
#homotopy-theory
#higher-category-theory
45
Views
Product of categorical equivalences.
Published on
15 Apr 2026 - 15:56
#category-theory
#homotopy-theory
#simplicial-stuff
#higher-category-theory
58
Views
Showing that $\pi_n(X,v)$ satisfies inverse axiom.
Published on
10 May 2026 - 15:01
#homotopy-theory
#simplicial-stuff
#simplicial-complex
#higher-category-theory
#higher-homotopy-groups
78
Views
What are small $(\infty,1)$ categories?
Published on
15 Apr 2026 - 23:37
#homotopy-theory
#simplicial-stuff
#higher-category-theory
91
Views
2-category as a 2-monad?
Published on
10 May 2026 - 19:25
#category-theory
#higher-category-theory
42
Views
Let $f : C \rightarrow D$ denote an arrow of a 2-category. Does "cone to $f$" have a commonly accepted meaning?
Published on
13 Apr 2026 - 18:31
#higher-category-theory
1.3k
Views
Why is the 'mapping space' between two objects in a quasi-category a Kan complex?
Published on
15 Apr 2026 - 6:04
#category-theory
#simplicial-stuff
#higher-category-theory
738
Views
How to construct a quasi-category from a category with weak equivalences?
Published on
15 Apr 2026 - 19:33
#category-theory
#homotopy-theory
#simplicial-stuff
#higher-category-theory
456
Views
n-globular sets and n-categories
Published on
15 Apr 2026 - 17:42
#category-theory
#higher-category-theory
242
Views
Defining a monoidal category without elements
Published on
16 Apr 2026 - 3:00
#category-theory
#monoidal-categories
#higher-category-theory
637
Views
Stacks versus sheaves with values in categories
Published on
10 May 2026 - 15:08
#category-theory
#sheaf-theory
#higher-category-theory
#algebraic-stacks
86
Views
Does the lax Gray tensor product preserve fully faithful 2-functors?
Published on
13 Apr 2026 - 23:58
#category-theory
#higher-category-theory
781
Views
Homotopy direct limit versus direct limit
Published on
14 Apr 2026 - 11:26
#algebraic-topology
#category-theory
#homotopy-theory
#higher-category-theory
151
Views
Are there any stable $(\infty,1)$-topoi?
Published on
11 Apr 2026 - 7:30
#category-theory
#homotopy-theory
#topos-theory
#higher-category-theory
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