11

Questions
votes newest views recent
3
10
votes
5
answers
781
views

Is the following invariant of rooted trees a complete invariant?

sep 28 at 18:41 F. C. 412●3●6

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6
votes
1
answer
474
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What is the homotopy type of the space of the homeomorphisms of the n-ball such that the homeomorphism restricted to the boundary is isotopic to the identity?

nov 10 at 4:06 Spice the Bird 940●3●14

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4
votes
4
answers
417
views

What is the intuition of connections for cubical sets?

nov 29 11 at 21:45 Dany Majard 93●5

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5
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2
answers
394
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A subcategory of top where subspaces and subobjects coincide?

jun 23 11 at 11:10 Alex Simpson 379●1●9

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14
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2
answers
352
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If $X$ is a simplicial complex, is their a characterization of the links of the vertices of $X$ that is equivalent to the statement "$|X|$ is a manifold

dec 22 at 1:02 Agol 23.9k●1●33●85

 
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votes
3
answers
349
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Are the categories, $\widehat{\mathcal{A}}\downarrow X$ and $\widehat{\mathcal{A}\downarrow X}$ equivalent.

apr 14 11 at 20:27 Mike Shulman 17.2k●20●70

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3
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1
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321
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What is the chromatic number of the graph whose vertices dimension $n-2$ subsimplicies of $\Delta^n$ and an edge between two vertices is given if the two associated $n-2$ vertices are contained in the same $n-1$ subsimplex?

jan 30 12 at 14:42 Richard Stanley 13.4k●2●60●94

 
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votes
2
answers
252
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Is it possible to define the notion of a localization of a category without reference to a set of morphisms, $S$?

apr 6 12 at 8:54 Martin Brandenburg 29.1k●2●46●130

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3
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1
answer
227
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Does each “prod-simplicial” regular cell complex come from a unique rooted tree?

nov 16 at 7:24 Spice the Bird 940●3●14

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7
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1
answer
218
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What is the precise relationship between “prodsimplicial sets” and rooted trees?

may 23 12 at 5:40 some guy on the street 1,543●4●12

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