Abstract
For linear systems which depend almost periodically on time, the Favard separation condition is shown to be equivalent to the following dimensional fact: all the systems in the hull have the same number of independent bounded solutions.
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Tarallo, M. The Favard Separation Condition for Almost Periodic Linear Systems. J Dyn Diff Equat 25, 291–304 (2013). https://doi.org/10.1007/s10884-013-9309-2
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DOI: https://doi.org/10.1007/s10884-013-9309-2