Arnold's structural stability conjecture for finite-parameter families on the two-sphere

Let a finite-parameter family of vector fields on S2S^2 be given, and call it weakly topologically equivalent to another family when a germ of a homeomorphism of parameter spaces makes corresponding vector fields orbitally topologically equivalent.

Arnold's conjecture. Generic finite-parameter families of vector fields on the two-sphere are structurally stable: close families are weakly topologically equivalent.

Arnold's conjecture was disproved for moderate equivalence; the supplied source specifically states that the disproof in that setting does not address weak equivalence, so the status of the weak-equivalence formulation is not established here.

Sources & referencesView supporting material

Primary source

Nataliya Goncharuk and Yury Kudryashov, “Families of vector fields with many numerical invariants”, arXiv:2003.01269 (2021).

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