|
@ -1,15 +1,44 @@ |
|
|
My thesis |
|
|
Rational Homotopy Theory |
|
|
========= |
|
|
======================== |
|
|
|
|
|
|
|
|
At the time of writing this repo consists of some notes only. |
|
|
Master thesis on Rational Homotopy Theory, the study of homotopy without |
|
|
Will be about rational homotopy theory or something. |
|
|
torsion. The thesis mainly focuses on the Sullivan equivalence, which models |
|
|
|
|
|
rational spaces by commutative differential graded algebras (contrary to |
|
|
|
|
|
Quillen's dual approach which considers coalgebras). These objects are nice |
|
|
|
|
|
since they are very similar to polynomial rings and hence allow for easy |
|
|
|
|
|
calculations. The construction which allows us to go back and forth between |
|
|
|
|
|
spaces and algebras resembles ideas from differential geometry (namely De Rham's |
|
|
|
|
|
cochain complex), but can be applied to any topological space. Applications |
|
|
|
|
|
include the calculation of all rational homotopy groups of all spheres (in |
|
|
|
|
|
contrast to the integral case where many groups remain unknown as of today) and |
|
|
|
|
|
a result towards Adams' theorem (stating that only the spheres S0, S1, S3 and S7 |
|
|
|
|
|
are H-spaces). |
|
|
|
|
|
|
|
|
## building |
|
|
|
|
|
It will create a build directory for all those stupid latex files. |
|
|
|
|
|
|
|
|
|
|
|
``` |
|
|
## Contents: |
|
|
|
|
|
|
|
|
|
|
|
1. Basics of Rational Homotopy theory |
|
|
|
|
|
- Rational Homotopy Theory |
|
|
|
|
|
- Serre Theorems mod C |
|
|
|
|
|
- Rationalizations |
|
|
|
|
|
|
|
|
|
|
|
2. CDGAs as Algebraic Models |
|
|
|
|
|
- Homotopy theory for CDGAs |
|
|
|
|
|
- Polynomial Forms |
|
|
|
|
|
- Minimal Models |
|
|
|
|
|
- The Main Equivalence |
|
|
|
|
|
|
|
|
|
|
|
3. Applications and Further Topics |
|
|
|
|
|
- Rational Homotopy Groups of the Spheres and Other Calculations |
|
|
|
|
|
- Further Topics |
|
|
|
|
|
|
|
|
|
|
|
4. Appendices |
|
|
|
|
|
- Differential Graded Algebra |
|
|
|
|
|
- Model Categories |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## Building the pdf |
|
|
|
|
|
|
|
|
cd thesis |
|
|
cd thesis |
|
|
make |
|
|
make |
|
|
open thesis.pdf |
|
|
open thesis.pdf |
|
|
``` |
|
|
|
|
|
|
|
|
|
|
|