We consider diffeomorphisms f of a smooth compact riemannian mainfold M and its suspension flow \((M, \phi)\). Assuming some regularity of the stable (unstable) sets at the points \(f^n(x), \phi_{t}(x), n \geq 0, t \geq 0\) we prove the persistence in the future of {f n(x), n ≥ 0} or \(\{\phi_{t}(x), t \geq 0\}\), i.e., that C 0 small perturbations g of f have a semi-trajectory that closely shadows {f n(x), n ≥ 0} and that the suspension of g has also a semi-trajectory that closely shadows \(\{\phi_{t}(x), t \geq 0\}\). In case x belongs to a minimal set of f we show that the assumptions concerning the regularity of stable and unstable sets could be reduced to a neighbourhood of x.
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Lewowicz, J. Persistence of Semi-Trajectories. J Dyn Diff Equat 18, 1095–1102 (2006). https://doi.org/10.1007/s10884-006-9047-9
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DOI: https://doi.org/10.1007/s10884-006-9047-9