most citedPositive Realness of a Transfer Function Neither Implies Nor is Implied by the External Positivity of their Associate Realizations

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math.CA2008

On the Asymptotic Expansions for Time-Varying Scalar Differential Equations Possesssing Limiting Differential Equations by Application of the Residue Theorem to their Discretized Counterparts. Preliminary Results

M. De la Sen

In this paper, it is proved that, in a dual context, asymptotic expansions of ordinary linear time-differential equations which possess limiting equations to their limiting equatio…