Inverse results on row sequences of Hermite–Padé approximation
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We consider row sequences of (type II) Hermite–Padé approximations with common denominator associated with a vector f of formal power expansions about the origin. In terms of the asymptotic behavior of the sequence of common denominators, we describe some analytic properties of f and restate some conjectures corresponding to questions once posed by A. A. Gonchar for row sequences of Padé approximants.
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