Periodic curve as immersed submanifold

  • Context: Graduate 
  • Thread starter Thread starter robforsub
  • Start date Start date
  • Tags Tags
    Curve Periodic
Click For Summary
SUMMARY

A periodic curve can still be considered an immersed submanifold of a manifold M. The curve map y, which maps an interval to M, is periodic and thus not injective. However, if y' is nonzero for all t, y qualifies as an immersion. The periodic nature allows the curve to be represented as a map Y from S^1 to M, where Y can be an injective immersion if y is injective during each period.

PREREQUISITES
  • Understanding of immersed submanifolds in differential geometry
  • Knowledge of periodic functions and their properties
  • Familiarity with the concept of injective immersions
  • Basic grasp of manifold theory
NEXT STEPS
  • Study the properties of immersed submanifolds in differential geometry
  • Learn about periodic maps and their implications in manifold theory
  • Explore the relationship between injective immersions and periodic curves
  • Investigate the topology of S^1 and its applications in manifold mappings
USEFUL FOR

Mathematicians, differential geometers, and students studying topology and manifold theory will benefit from this discussion.

robforsub
Messages
16
Reaction score
0
Is a periodic curve still an immersed submanifold of a manifold M? Suppose y is the curve
map an interval to a manifold M, and y is periodic, which means it is not injective. And immersed submanifold must be the image of a injective immersion.
 
Physics news on Phys.org
If it's periodic, maybe you want to immerse S^1 instead of an interval.
 
Let me clarify it a little bit, so I want to show that the image of that curve y is a immersed submanifold of manifold M, and without the condition y'(t)!=0 for all t, I can not say y is a immersion, then the image of curve y is immersed submanifold, right?
 
What I mean is that, if y' is everywhere nonzero, then y is an immersion. And although y isn't injective, its image may still be an immersed submanifold of M, since a periodic map from R to M descends to a map Y from S^1 to M, so that going once around the circle covers a single period. And if y is injective during each period, then Y is an injective immersion.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
711
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 36 ·
2
Replies
36
Views
5K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 7 ·
Replies
7
Views
5K
  • · Replies 73 ·
3
Replies
73
Views
8K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
4
Views
2K