The content discusses the Skolem problem, positivity problem, and ultimate positivity problem in linear dynamical systems. It explores robustness variants between initialized and un-initialized configurations. The analysis focuses on the frontier of decidability for these problems when considering a neighborhood around the initial configuration. Techniques are applied to tackle robustness for ultimate positivity by examining bounds on the number of steps for remaining positive. Complexity results are summarized in Table 1. The paper provides insights into difficult problems with geometrical interpretations.
The structure of the paper includes sections on preliminaries, robustness analysis, geometric interpretations, hardness results, and conclusions.
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arxiv.org
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