Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
Homotopy theory, homological algebra, algebraic treatments of manifolds.
4
votes
How to show that a space has the homotopy type of wedge of spheres ?
(If I remember correctly) a shellable (simplicial) complex automatically has the homotopy type of a wedge of spheres: if you could find a shellable triangulation you should be done.
Of course, this'l …
14
votes
2
answers
2k
views
Sheaves over simplicial sets
Is there a good way to define a sheaf over a simplicial set - i.e. as a functor from the diagram of the simplicial set to wherever the sheaf takes its values - in a way that while defined on simplex b …
2
votes
0
answers
233
views
Cohomology spectral sequence over $k[t]$
I am trying to compute $H^*(X)$ for a (potentially large, finite, finitely filtered) simplicial complex $X$ using a cover $U_i$ of $X$.
I am building chain complexes for $X$ with a simplex that appea …
5
votes
0
answers
503
views
Is the face poset a Heyting algebra?
Is the face poset of a simplicial or nice enough cellular complex a Heyting algebra in some natural way?
Edited to add: For the benefit of illustration, here's a few face posets:
the boundary of a …
9
votes
2
answers
924
views
Intuitionistic algebraic topology?
Are there results in algebraic topology -- preferably relating to homology or homotopy or phraseable in simplicial sets -- that are not true in an intuitionistic logic?
In other words, are there res …
5
votes
The relationship between low dimensional topology and dynamics
Robert Ghrist started out his (prolific) research career investigating knotted trajectories in dynamical systems. http://www.math.upenn.edu/~ghrist/preprints-dynamics.html
Konstantin Mischaikow has b …
11
votes
Computer-aided homology computations
There are several applications and libraries out there that deal with homology computations with various approaches to the computation. One field with a strong focus on efficient computation of homolo …
16
votes
"Homotopy-first" courses in algebraic topology
There is the Aguilar-Gitler-Prieto book on algebraic topology: Algebraic Topology from a Homotopical Viewpoint. As I recall from browsing it, the book is meant to be a graduate course in algebraic top …
5
votes
When are (finite) simplicial complexes (smooth) manifolds?
There is the idea of a simplicial manifold, which works by checking that the complex is pure (all facets of the same dimension) and that each codimension 1 face is included in the correct number of fa …
2
votes
Are there some original papers or books related to applications of algebraic topology and al...
Another good place to start is to track the output of Marion Mrozek and Konstantin Mischaikow, and their various co-authors. There is a whole group at the University in Krakow centered on Mrozek doing …
3
votes
Are there some original papers or books related to applications of algebraic topology and al...
One place where papers on applications of algebraic topology — to dynamical systems as well as to statistics, data analysis, bio-medicine, computational geometry and other areas — gets aggregated is o …
8
votes
Persistent homology of Gaussian fields in Euclidean space
The closest I can find spontaneously would be Matthew Kahle's work on random topology; http://arxiv.org/abs/0910.1649 looks like it would be directly related to your question, and http://arxiv.org/abs …
-2
votes
The second homotopy group of a simple CW-complex
So, the one 0-cell forces the 1-skeleton to be a figure-8. And we attach three 2-cells to this figure-8. These cells can be attached to:
loop 1, with some winding number n.
loop 2, with some winding …