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A Note on a Paper by Nieminen

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Abstract

A criteria due to Toivo Nieminen concerning selfadjoint linear operators in complex Hilbert spaces is extended to the case of linear relations.

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References

  1. Arens, R.: Operational calculus of linear relations. Pac. J. Math. 11, 9–23 (1961)

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  2. Dijksma, A., de Snoo, H.S.V.: Self-adjoint extensions of symmetric subspaces. Pac. J. Math. 54(1), 71–100 (1974)

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  3. Donoghue Jr., W.F.: On a problem of Nieminen. Publications mathematiques de l-I.H.E.S., tome 16, 31–33 (1963)

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  4. Nieminen, T.: A condition for the self-adjointness of an operator. Annales Academiae Fennicae 316, 5 (1962)

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Authors and Affiliations

  1. Department of Mathematics and Informatics, “Gheorghe Asachi” Technical University of Iaşi, B-dul Carol I, nr. 11, 700506, Iaşi, Romania

    Marcel Roman & Adrian Sandovici

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  1. Marcel Roman
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  2. Adrian Sandovici
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Correspondence to Adrian Sandovici.

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Roman, M., Sandovici, A. A Note on a Paper by Nieminen. Results Math 74, 73 (2019). https://doi.org/10.1007/s00025-019-1002-2

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  • DOI: https://doi.org/10.1007/s00025-019-1002-2

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