Mandell's Theorem

Goal of the project

The goal of this project is to understand the following theorems of Mandell:

Theorem 1: Two finite p-type nilpotent p-complete spaces X and Y are of the same p-type if and only if the E∞-algebra of singular cochains with Fp coefficients are quasi-isomorphic as E∞-algebras.

Theorem 2 (a stronger statement): Two finite type nilpotent spaces X and Y are weakly equivalent and only if the E∞-algebra of singular cochains with Z coefficients are quasi-isomorphic as E∞-algebras.

Schedule (for March)

8 March: Introduction (Joana) - Notes

15 March: Operads (Bashar) - Notes

22 March: Examples of interesting CW complexes (Carles) - Notes

12 April: E∞-algebras (Bashar)

19 April: Steenrod operations (Anna) - Notes

26 April: Overview of rational homotopy theory (Roger) - Notes

3 May: E∞-algebra structure on C*sing(X) (César) -Notes

10 May: Quillen model structures and Quillen equivalences (Javier)

17 May: Homotopy theory of E∞-algebras (Javier)

26 May: p-adic model structure on simplicial sets (David) - Notes

31 May: Postnikov towers for p-complete spaces (Nathan)

7 June: Resolvable spaces (Bashar)




Proof of Mandell's theorems