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Extremal positive and self-adjoint extensions of suboperators

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This work is supported in part by the fund OTKA (No. 5-134).

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Sebestyén, Z., Kapos, L. Extremal positive and self-adjoint extensions of suboperators. Period Math Hung 20, 75–80 (1989).

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Mathematics subject classification number

  • 1980/85
  • Primary 47A20

Key words and phrases

  • Positive
  • self-adjoint
  • suboperator
  • extremal extension