Generic absence of sky catastrophes for homotopies of Reeb vector fields

Let MM be a compact contact manifold, and let {Xt}\{X_t\}, t[0,1]t\in[0,1], be a smooth homotopy through Reeb vector fields. A sky catastrophe is the phenomenon excluded by the stated genericity condition for the family. Generic sky-catastrophe conjecture. There is a C0C^0-nearby smooth family {Xt}\{X'_t\}, t[0,1]t\in[0,1], satisfying Xi=XiX'_i=X_i for i=0,1i=0,1, such that {Xt}\{X'_t\} has no sky catastrophes. This would rule out Fuller’s sky catastrophe after an arbitrarily small perturbation relative to the endpoints; the supplied text does not state whether the claim is known or unresolved.

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Primary source

Yasha Savelyev, “Extended Fuller index, sky catastrophes and the Seifert conjecture”, arXiv:1703.07801 (2019).

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