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Extremal extensions of a nonnegative operator, and accretive boundary-value problems

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Abstract

A method is proposed to describe the maximal nonnegative and the proper maximal accretive extensions of a nonnegative closed densely defined operator in a Hilbert space.

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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 42, No. 6, pp. 858–860, June, 1990.

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Storozh, O.G. Extremal extensions of a nonnegative operator, and accretive boundary-value problems. Ukr Math J 42, 758–760 (1990). https://doi.org/10.1007/BF01058931

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  • DOI: https://doi.org/10.1007/BF01058931

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