Codimension k Stratum: A Manifold with Corners

  • Context: Graduate 
  • Thread starter Thread starter seydunas
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the concept of a "manifold with corners" and its relation to the "codimension k stratum" as defined in Hutchings' lecture notes on Morse Homology. The codimension k stratum, denoted as X_k, consists of points in a manifold X characterized by a chart mapping to R^(n-k) x [0, infinity)^k, where at least one of the last k coordinates is zero. Additionally, the interior of X is represented by X_0. Participants seek clarification on the compactification theorem of moduli spaces as presented in Hutchings' work.

PREREQUISITES
  • Understanding of differential geometry concepts, specifically manifolds.
  • Familiarity with Morse Homology and its applications.
  • Knowledge of compactification techniques in topology.
  • Basic understanding of charts and coordinate systems in mathematical contexts.
NEXT STEPS
  • Study the definition and properties of "manifolds with corners" in differential geometry.
  • Explore the implications of "codimension k strata" in the context of moduli spaces.
  • Review Hutchings' lecture notes on Morse Homology, focusing on the compactification theorem.
  • Investigate examples of compactification in algebraic geometry and topology.
USEFUL FOR

Mathematicians, particularly those specializing in differential geometry, algebraic topology, and Morse theory, will benefit from this discussion as it delves into advanced concepts relevant to their fields of study.

seydunas
Messages
39
Reaction score
0
Hi

What do you understand from this sentence: manifold with corners whose codimension k stratum? i am reading the lecture notes by Hutchings, Morse Homology. When i see the compactification theorem of modili spaces, i read a this sentence but i understood nothing.
 
Physics news on Phys.org
I've been wondering about that also. Post the answer here if you find out please.
 
Hi,

i found a definition of codimension k-stratum. We define the codimension k-stratum of X to be the set X_k of points x in X with a chart f : U---> R^n-k x [0, infinity)^k such that at least one of the last k-coordinates of f(x) is zero.
Note that X_0 is just the interior of X.

I wonder that if you prove the "Compactification of moduli space" in Hutchings Lecture note, can you give me some hints, or direct detail.
 

Similar threads

  • · Replies 0 ·
Replies
0
Views
2K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 14 ·
Replies
14
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 16 ·
Replies
16
Views
5K