On the hard and soft extensions of a nonnegative operator

Journal of Mathematical Sciences

Volumn 79, Issue 6, 1996, Pages 1378-1380

  Storozh, O G ^a  

^a NONE

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EID: 53349174196     PISSN: 10723374     EISSN: 15738795     Source Type: Journal    
DOI: 10.1007/BF02362786     Document Type: Article

References (8)

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3. V. A. Derkach and M. M. Malamud, "The Weyl function of a Hermitian operator and its connection with the characteristic function," Preprint Akad. Sci. Ukr. SSR, 85-9/104, Donetsk (1985).
4. A. N. Kochubei, "On extensions of a positive-definite operator," Dokl. Akad. Nauk UkrSSR, Ser. A, No. 3, 168-171 (1979).
5. M. G. Krein, "Theory of self-adjoint extensions of semibounded operators," Mat. Sb., 20, No. 3, 431-495 (1947).
6. V. E. Lyantse and O. G. Storozh, Methods of the Theory of Unbounded Operators [in Russian], Naukova Dumka, Kiev (1983).
7. O. G. Storozh, "Extremal extensions of a nonnegative operator and accretive boundary-value problems," Ukr. Mat. Zh., 42, No. 6, 858-860 (1990).
8. A. V. Shtraus, "On extensions of a semibounded operator," Dokl. Akad. Nauk SSSR, 231, No. 3, 543-546 (1973).