Non-Affine Connections: Why & What?

  • Context: Graduate 
  • Thread starter Thread starter Geometry_dude
  • Start date Start date
  • Tags Tags
    connection
Click For Summary
SUMMARY

The discussion centers on the concept of non-affine connections in the context of differential geometry, specifically addressing the nature of affine connections as covariant derivatives on smooth manifolds. It clarifies that the term "affine" originates from Cartan's work, which relates to the identification of tangent spaces in Euclidean space through translation. The inquiry also seeks to explore whether a mathematical construct exists that connects neighboring tangent spaces in a manner distinct from affine connections.

PREREQUISITES
  • Understanding of smooth manifolds and their properties
  • Familiarity with covariant derivatives and their applications
  • Knowledge of differential geometry terminology
  • Basic grasp of the historical context of mathematical concepts, particularly Cartan's contributions
NEXT STEPS
  • Research the properties and applications of non-affine connections in differential geometry
  • Study the historical development of affine connections and their significance in modern mathematics
  • Explore the role of tangent spaces in manifold theory and their relationship to affine connections
  • Investigate alternative connection types and their implications in geometric analysis
USEFUL FOR

Mathematicians, physicists, and students of differential geometry seeking to deepen their understanding of connections on manifolds and the distinctions between affine and non-affine connections.

Geometry_dude
Messages
112
Reaction score
20
"Everyone" knows what an affine connection on a smooth manifold is a.k.a. covariant derivative. My questions are:
i) Why are those connections called affine?
ii) Is there a mathematical object that 'connects neighboring tangent spaces', that could be termed a 'non-affine connection'?
 
Physics news on Phys.org
I quote wikipedia: "The terminology [affine connection] is due to Cartan and has its origins in the identification of tangent spaces in Euclidean space Rn by translation: the idea is that a choice of affine connection makes a manifold look infinitesimally like Euclidean space not just smoothly, but as an affine space."

http://en.wikipedia.org/wiki/Affine_connection
 

Similar threads

  • · Replies 11 ·
Replies
11
Views
7K
  • · Replies 18 ·
Replies
18
Views
3K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 9 ·
Replies
9
Views
5K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 9 ·
Replies
9
Views
3K