Generic absence of sky catastrophes for homotopies of Reeb vector fields
Generic absence of sky catastrophes for homotopies of Reeb vector fields
Let be a compact contact manifold, and let , , 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 -nearby smooth family , , satisfying for , such that 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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