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On a companion operator for analytic functions

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Work on this paper was supported in part by the U. S. Army Research Office (Durham) through Grant DA-ARO(D)-31-124-G1050 and by the National Science Foundation through Grant GP-8442 with The University of Texas at Austin.

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Stewart, G.W. On a companion operator for analytic functions. Numer. Math. 18, 26–43 (1971). https://doi.org/10.1007/BF01398457

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