Abstract
The perturbation problem is considered for a semi-Noether operator under minimal assumptions imposed on given spaces.
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 45, No. 2, pp. 270–278, February, 1993.
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Plaksa, S.A. On perturbation of semi-Noether operators in incomplete spaces. I. Ukr Math J 45, 290–298 (1993). https://doi.org/10.1007/BF01060986
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DOI: https://doi.org/10.1007/BF01060986