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This tag is used if a reference is needed in a paper or textbook on a specific result.
4
votes
Applications of rank factorization or full rank decomposition
There are many applications of this which have arisen as a result of the Netflix Prize. For a good set of references on such algorithms see A Comparative Study of Collaborative Filtering Algorithms.
34
votes
Theoretical physics: Why not just $\mathbb{R}^4$?
A quick answer...
Likely the most well-known and accepted paper in the physics community on this is, no surprise, by Witten Global gravitational anomalies.
There he argues, in dimensions higher than 4 …
6
votes
Is there a relation between 4-dimensional general relativity and exotic smooth structures on...
I assume by general relativity you mean classical general relativity as opposed to any quantum version of general relativity. With that in mind I will attempt to answer your questions:
Are there prop …
6
votes
Applications of finite continued fractions
Reverse slam dunk http://lakers.topbuzz.com/gallery/d/272643-1/Kobe+Bryant+reverse+slam+dunk+in+the+2009+preseason.JPG
Reverse slam dunking any rational surgery diagram for a three-manifold into an i …
7
votes
0
answers
208
views
How do metrics behave under joining along a manifold embedded in the boundary?
How do metrics behave under joining along a manifold embedded in the boundary?
This is, more-or-less, part of Problem 4.66 in Kirby's List:
Problem 4.66 How do metrics (e.g. Riemannian, Lorentz, …