The concepts of the qualified closure, the positivity and the boundedness of element systems in the Hilbert space have been introduced. The definite operators connected with these systems have been called the abstract F-representations. The properties of mentioned operators and the decidability of corresponding equations have been studied.

Original languageRussian
Pages (from-to)16-20
Number of pages5
JournalVestnik Sankt-Peterburgskogo Universiteta. Ser 1. Matematika Mekhanika Astronomiya
Issue number1
StatePublished - 1 Jan 1996

    Scopus subject areas

  • Mathematics(all)
  • Physics and Astronomy(all)

ID: 53484794