Multiple disjunction conjecture for spaces of Poincare embeddings

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Let NN be a smooth compact nn-dimensional manifold. Let (Q1,…,Qr)(Q_1,\dots,Q_r), with r≥1r\geq 1, be pairwise disjoint compact submanifolds of NN transverse to ∂N\partial N, and let qiq_i be the handle dimension of QiQ_i relative to ∂0Qi=Qi∩∂N\partial_0Q_i=Q_i\cap\partial N. Let (P,∂0P,∂1P)(P,\partial_0P,\partial_1P) be a compact manifold triad, let pp be the handle dimension of PP relative to ∂0P\partial_0P, and suppose that an embedding e0:∂0P→∂Ne_0:\partial_0P\rightarrow\partial N is given, disjoint from ∂0Qi\partial_0Q_i for all ii. For S⊂r‾={1,…,r}S\subset\underline r=\{1,\dots,r\}, set QS=⋃i∈SQiQ_S=\bigcup_{i\in S}Q_i. Multiple disjunction conjecture. In this situation the rr-dimensional cubical diagram formed by the spaces {E(P,N−QS)}\{E(P,N-Q_S)\} is (1−p+∑i(n−qi−2))(1-p+\sum_i(n-q_i-2))-cartesian. In the cited work, this is proved when n−p≥3n-p\geq 3 and n−qi≥3n-q_i\geq 3; the conjecture concerns the remaining cases and expresses the expected multiple-disjunction connectivity for spaces of embeddings.

References

Primary source

Thomas G. Goodwillie and John R. Klein, “Multiple disjunction for spaces of Poincare embeddings”, arXiv:0801.3980 (2008).

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