Our goal is to study to Goodwillie’s proof of multiple disjunction for concordance embeddings. This is the main technical input for the convergence of embedding calculus in codimension at least 3.

Schedule:

  1. Feb 1 (Sander): Concordance-implies-isotopy and the proof of Morlet’s lemma of disjunction (Hudson, Rourke, Burghelea-Lashof-Rothenburg), notes.
  2. Feb 15 (Manuel): The statement and Goodwillie’s sketch (Introduction of Memoir).
  3. Mar 1 (Mauricio): Homotopy excision for n-ads (Preliminaries A and B or Memoir, Barratt-Whitehead), notes.
  4. .Mar 15 (Sander): Sunny collapsing (Preliminaries C of Memoir, Hudson), notes.
  5. .Mar 29 (Nils): General position and approximation (Preliminaries D and E of Memoir). notes.
  6. Apr 12 (Sander): Invariant algebraic sets of multi-jets and operations on these (II.A and II.B of Memoir). notes.
  7. Apr 26 (Sander): Z and genericity for fibered concordance (II.C and II.D of Memoir) notes.
  8. May 10 (Pedro): The proof of multiple disjunction (III of Memoir) notes.
  9. May 24 (Manuel): Multiple disjunction for Poincare embeddings.
  10. June 7 (Danica): Multiple disjunction for smooth embeddings.
  11. June 21: Convergence for embedding calculus.