Avoidance conjecture for weakly strict saddle points
Avoidance conjecture for weakly strict saddle points
Let be a real-analytic Riemannian manifold, and let be real-analytic and non-constant. For a subset , write for the set of points whose negative-time trajectories approach . A point is a weakly strict saddle point when it satisfies the paper's weak strict-saddle condition.
Avoidance conjecture. If a compact connected component of consists of weakly strict saddle points, then has measure zero. Moreover, if is compact and is any compact subset, then has measure zero.
The conjecture would extend the paper's avoidance results, including the weak center-stable theorem and its consequences, beyond the tameness assumption. Its status is not determined by the supplied text.
Sources & referencesView supporting material
Primary source
El Mehdi Achour, Umberto L. Hryniewicz and Michael Westdickenberg, “Avoidance of non-strict saddle points by blow-up”, arXiv:2511.23268 (2025).
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