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Uniform exponential stability in the sense of Hyers and Ulam for periodic time varying linear systems
We prove that the uniform exponential stability of time depended p -periodic systemis equivalent to its Hyers-Ulam stability.As a tool, we consider the exact solution of the Cauchy problem, where α is any real number, ζ (t) with ζ (0) = 0 , is a p -periodic bounded function on …