ASE implies non-uniform sectional expansion
ASE implies non-uniform sectional expansion
Let be a partially hyperbolic compact invariant set for a smooth flow. The ASE condition (and, respectively, the ASE condition) is the hypothesis that has asymptotic sectional expansion (and, respectively, asymptotic -sectional expansion); the NU2SE condition (and, respectively, the NUpSE condition) denotes non-uniform two-sectional expansion (and, respectively, non-uniform -sectional expansion).
ASE-to-NU2SE conjecture. A partially hyperbolic compact invariant set for a smooth flow satisfying the ASE condition (pASE) also satisfies the NU2SE (NUpSE) condition.
The conjecture proposes that asymptotic sectional expansion is sufficient for the corresponding non-uniform sectional expansion, extending the implications known for the weak versions away from trajectories converging to singularities. The source does not state a resolution.
Sources & referencesView supporting material
Primary source
Vitor Araujo and Luciana Salgado, “Physical measures for asymptotically sectional expanding flows in higher co-dimensions”, arXiv:2511.18986 (2025).
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