The strong NE-equivalence conjecture for simple homotopy types

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Let {Xi}i=1\{X_i\}_{i=1}^\infty be a family of finite simplicial complexes. The strong NE-equivalence conjecture. There exists an infinite family of finite simplicial complexes {Xi}i=1\{X_i\}_{i=1}^\infty, which all have the same simple homotopy type, such that

Xi̸NEXjX_i\not\simeq_{\text{\tt NE}} X_j

for all iji\neq j. This strengthens the weak conjecture by requiring infinitely many pairwise non-NE-equivalent complexes within a single simple homotopy type; its status is left open in the supplied text.

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Sources & referencesView supporting material

Primary source

Dmitry N. Kozlov, “Collapsing along monotone poset maps”, arXiv:math/0503416 (2006).

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